Utilisation d'une libraire en mode cmd !

Salut,

J'ai un programme Java ou dedans il y'a un autre programme qui va être compiler et exécuter par le premier , voila un bout du code :

Code:

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/----------------------Creating the whole complete java Program------------------------------------------- System.out.println("----***------"+p+"-----***------\n"); System.out.println("----***------Start Compiling File----***------\n"); String className = "Out1"; StringBuilder classSource=new StringBuilder(); //classSource.append("package out1;"); classSource.append("import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.Random; import java.awt.BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.converters.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka.classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers.rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.classifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisualizePanel;"); classSource.append(" public class Out1 {"); classSource.append(" public static void main(String[] args) throws IOException , Exception {"); classSource.append("BufferedReader breader= null;breader=new BufferedReader(new FileReader(\"C:/Users/Phd/Downloads/vowel.arff \"));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttributes() - 1);"); classSource.append(" breader.close();"); classSource.append(" Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));"); classSource.append(p); classSource.append(" System.out.println(\"[----------Printing Fitness----------]\"+ y); "); classSource.append(" File f = new File( \"c:\\\\Users\\\\pc\\\\Desktop\\\\myobj.obj\"); ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(f));out.writeInt(y);out.flush(); out.close();"); classSource.append("}"); classSource.append("}");   //------------------------------------------------------------------------------------------------------------     //----------------------Compiling and Runing the individual--------------------------------------------------- compileAndRun(className, classSource.toString()); System.out.println("----***------Finish Compiling -----***------\n"); //------------------------------------------------------------------------------------------------------------

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dans cette partie du premier programme j’écris le code du deuxième , le problème c'est que la je fais des import de la librairie Weka.jar ( en utilisant netbeans je fais un ajout du Weka.jar au niveau du fichier libraire et c'est bon ça marche mais la je ne sais pas comment le faire ( j'utilise la cmd pour exécuter le programme pere

cf. :faq: http://java.developpez.com/faq/java/...FIER_CLASSPATH

mais mais mais... pourquoi veux-tu faire une chose pareil???

Merci Pill
Ben parce que après la création et l exécution du 2 eme programme va être automatique car je vais utiliser "Grammatical evolution".
j'essaye avec

Code:

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java -classpath GEVA.jar weka.jar Main.Tutorials.Tutorial6

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mais ça marche pas ?

Il faut un ; entre les différentes librairies je pense.

J'ai essayer avec un ; mais :? ça marche pas !

Il faudrait peut être nous indiquer en quoi cela ne marche pas (copie du message d'erreur), car "ca ne marche pas", ca ne marche pas non plus :)

Désolé ,
mais ça donne plein d'erreurs dans tous les package contenant import weka......
et ça dit que les package does not exist ?

hum... tu es sûr que les fichiers jar sont au bon endroit (càd, que le chemin pointé par ce que tu met dans -classpath pointe bien vers un fichier)?

ben je suis aller au C:\Program Files\Weka-3-6 et j'ai copier weka.jar et je l'ai mis dans le fichier bin ou se trouve GEVA.jar ?

et tu es dans quel répertoire lorsque tu lances ton programme? bin?

et tu es sur dans la casse? "Main.Tutorials.Tutorial6" ça ressemble pas à un nom de classe Java, habituellement on met des minuscules pour les packages...


sinon, poste un exemple minimal de ce qui ne va pas: sources, contexte, message d'erreur EXACT et COMPLET etc pour qu'on puisse t'aider parce que là... c'est la nuit noire, on est obligé de te tirer les vers du nez pour avoir quelques infos...

avant de lancer le programme je fais
cd bin
dans bin il ya : GEVA.jar , lib : contenant des fichier pour GEVA , weka.jar , Out1.java , Out1.class , GUI.jar : pour GEVA
Donc je lance
java -classpath GEVA.jar;weka.jar Main.Tutorials.Tutorial6
Main c un dossier ou dedans il y a dossier Tutorials ou se trouve mon programme Tutorials.java

apres que je lance voila ce que j’obtiens :

Code:

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^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: package weka.classifiers.rules does not exis t import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}             ^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: package weka.classifiers.rules does not exis t import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}             ^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: package weka.classifiers.trees does not exis t import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}               ^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: package weka.gui.visualize does not exist import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}               ^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: package weka.gui.visualize does not exist import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}               ^ C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: cannot find symbol import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}                     ^ symbol: class Instances location: class Out1 C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: cannot find symbol import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}                     ^ symbol: class Instances location: class Out1 C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: cannot find symbol import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}                       ^ symbol: class Ridor location: class Out1 C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: cannot find symbol import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}                       ^ symbol: class Ridor location: class Out1 C:\Users\Phd\Desktop\MyTrial\bin\Out1.java:1: error: cannot find symbol import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt. BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.convert ers.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.Fi leReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka .classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers .rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.cl assifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisua lizePanel; public class Out1 { public static void main(String[] args) throws IOException , Excep tion {BufferedReader breader= null;breader=new BufferedReader(new FileReader("C:/Users/Phd/Downlo ads/vowel.arff "));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttri butes() - 1); breader.close(); Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));double y= ev al.pctCorrect() ; System.out.println("[----------Printing Fitness----------]"+ y); File f = new File( "c:\\Users\\pc\\Desktop\\myobj.obj"); ObjectOutputStream out = new ObjectOutputStream(n ew FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();}}           ----***------Finish Compiling -----***------   #---Data--- Gen FitEvals Time(ms) Invalids BestFit AveFit VarFit AveUsedGenes A veLength AveDTDepth         0 0 45504 0 6,000 6,000 0,000 0,000 0,000 2,000 ---------------------- [double y= eval.pctCorrect() ; ] ---------------------- [double y= eval.pctCorrect() ; ] ---------------------- [double y= eval.pctCorrect() ; ] ---------------------- [double y= eval.pctCorrect() ; ] Exception: java.lang.ArithmeticException: / by zero java.lang.ArithmeticException: / by zero at Operator.Operations.SinglePointCrossover.getMaxXOPoint(SinglePointCrossover.java:204) at Operator.Operations.SinglePointCrossover.doOperation(SinglePointCrossover.java:141) at Operator.CrossoverModule.perform(CrossoverModule.java:81) at Algorithm.SimplePipeline.step(SimplePipeline.java:63) at Algorithm.MyFirstSearchEngine.step(MyFirstSearchEngine.java:50) at Main.AbstractRun.run(AbstractRun.java:372) at Main.Tutorials.Tutorial6.experiment(Tutorial6.java:48) at Main.Tutorials.Tutorial6.main(Tutorial6.java:122)   C:\Users\Phd\Desktop\MyTrial\bin>

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Bon alors il ne trouve pas le package weka.classifiers.rules:

Plusieurs choses à vérifier:
- est-ce que dans le jar weka.jar, il y a bien le package en question (ouvrir avec lecteur de fichiers zip pour vérifier)
- est-ce que ça change quelque chose de préfixer avec "./" comme indiqué dans la faq (p.ex: java -classpath ./GEVA.jar;./weka.jar Main.Tutorials.Tutorial6 )? (je ne pense pas mais bon...)
- est-ce que tu es bien sous windows (c'est la syntaxe windows avec ; comme séparateur)

Ensuite un truc bizarre, tu dis que tu as un fichier java dans Main.Tutorials.Tutorial6? Mais il faut un fichier .class, dont le source doit déclarer "package Main.Tutorials.Tutorial6". La ligne de commande devrait ensuite être "java -classpath ./GEVA.jar;./weka.jar Main.Tutorials.Tutorial6.Tutorials".

Puis finalement, de par le message d'erreur, je me demande si l'erreur n'est pas le produit de la compilation lancée par le programme et non pas le programme lui-même qui plante. Je vois dans ton code original, la ligne "compileAndRun(className, classSource.toString());" mais je ne sais ni de quelle librairie il s'agit ni comment le classpath de cette instruction est settée. Il faut peut-être chercher un moyen de spécifier le classpath à ce niveau-là...

Bref sans exemple reproductible chez nous, c'est dûr de te guider, et les infos que tu fournis ne sont pas complètes...

quand je lance le même petit programme en utilisant netbeans et en important weka.jar ça marche très bien , donc weka contiens tous les fichier que je en ai besoin ,

et je suis bien sous windows

non pour Main.Tutorials.Tutorial6 c'est Tutorial6 qui est mon java class cad dans Tutorials j'ai Tutorial6.java

si je fait les même étapes et le petit programme a l'intérieur n'utilise pas weka c-a-d un simple programme d'addition çà marche bien
c'est quand j'ai utiliser weka et ses class que j'ai un problème

dans C:\Program Files\Weka-3-6 weka 3-6 il y a d'autre fichiers est ce que je dois les poser dans mon bin ?

est ce que je dois ecrire .\weka.jar ici :

Code:

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public static void run(File file) throws IOException { System.out.println("Run java program: " + file);   Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "Out1" },null, file.getParentFile());   printResult("Run", processRun); }

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parceque c'est ou le prmier programme s'execute ?!!!!

Citation:

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Envoyé par benooo

est ce que je dois ecrire .\weka.jar ici :

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bah oui... si dans Out1 tu références une librairie externe, alors il faut setter le classpath correctement...

d'où l'intérêt de donner des infos suffisantes dès le début... ça évite les aller-retour inutiles...

voila ce que j'ai faite

Code:

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public static void run(File file) throws IOException { System.out.println("Run java program: " + file);   Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "-classpath", "weka.jar", "Out1" },null, file.getParentFile());   printResult("Run", processRun); }   private static String getClassName(File file) { String name = file.getName(); return name.substring(0,name.indexOf('.')); }

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mais toujours le même problème , merci pour vos reponse

Bah désolé mais ça devrait fonctionner...

Encore une fois, au risque de me répéter, si tu ne fournis pas d'exemple reproductible facilement, ni les messages d'erreurs complets, ni le code source complet, difficile de t'aider...

Code:

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package FitnessEvaluation.PatternMatch; import Exceptions.BadParameterException; import Individuals.Individual; import Individuals.Phenotype; import java.util.Properties; import FitnessEvaluation.FitnessFunction; import Util.Constants; //import jxl.*; //import jxl.Workbook; //import jxl.read.biff.*; //import jxl.write.WriteException; import java.util.Locale; import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.File; import java.io.FileInputStream; import java.io.ObjectInputStream; import java.io.PrintWriter;   //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* //*************************************************************************************************************************************************************   public class MyFitness implements FitnessFunction {   private static String s;   /** Creates a new instance of MyFitness  */ public MyFitness () { s = "geva"; }   /**      * Creates a new instance of MyFitness      * @param s String to match      */ public MyFitness (String s) { MyFitness .s = s; } public void setProperties(Properties p) { String key = Constants.WORDMATCH_WORD; String value; value = p.getProperty(key,"geva"); MyFitness .s = value; } //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* private static final String FOLDER = "C:\\Users\\Phd\\Desktop\\MyTrial\\bin\\"; private static final String JAVA_BIN_PATH = "C:\\Program Files\\Java\\jdk1.7.0_21\\bin\\";           //----------------------------Compile and Run the file public static void compileAndRun(String className, String source) {   File sourceFile = new File(FOLDER+className+".java"); File classFile = new File(FOLDER+className+".class");   try { if ( compile(sourceFile,source) ) { run(classFile); } } catch (Exception e) {System.err.println("Error: " + e.getMessage());}   } //---------------------------------Compile   public static boolean compile(File filename, String classsource) throws IOException {   // Create file FileWriter fstream = null; try { fstream = new FileWriter(filename); BufferedWriter out = new BufferedWriter(fstream); out.write(classsource); out.flush(); } finally { if (fstream != null) { try { fstream.close(); } catch (IOException e) { // silent } } }   Process processCompile = Runtime.getRuntime().exec( new String[] { JAVA_BIN_PATH + "javac.exe", FOLDER + "Out1.java" } ); return printResult("Compile", processCompile)==0;   } //------------------run public static void run(File file) throws IOException { System.out.println("Run java program: " + file);   Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "-classpath", "./weka.jar;./GEVA.jar", "Out1" },null, file.getParentFile());   printResult("Run", processRun); }   private static String getClassName(File file) { String name = file.getName(); return name.substring(0,name.indexOf('.')); }   //-------------------------Print Result private static int printResult(String prog, final Process process) { new Thread() { public void run() { try { InputStream stream = process.getErrorStream(); try { int read; while ((read = stream.read()) != -1) { System.err.print((char) read); } System.err.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); new Thread() { public void run() { try { InputStream stream = process.getInputStream(); try { int read; while ((read = stream.read()) != -1) { System.out.print((char) read); } System.out.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); try { process.waitFor(); return process.exitValue(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); return -1;}   }                                               //************************************************************************************************************************************************************* //****************************************************************------*Fitness*------*********************************************************************** //*************************************************************************************************************************************************************       /**      * Compare a string to the word. Each symbol not matching increases the fitness by 1.      * Max fitness is max(length of the word, phenotype).      * @param p Compared phenotype      * @return Number of missmatches      */ public double evaluateString(Phenotype p) throws IOException{   //----------------------Deleting the Fitness file content value of the individual------------------------------------------- PrintWriter writer = new PrintWriter("c:\\myobj.obj"); writer.print(""); writer.close(); //--------------------------------------------------------------------------------------------------------------------------       //----------------------Creating the whole complete java Program------------------------------------------- System.out.println("----***------"+p+"-----***------\n"); System.out.println("----***------Start Compiling File----***------\n"); String className = "Out1"; StringBuilder classSource=new StringBuilder(); //classSource.append("package out1;"); classSource.append("import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt.BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.converters.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka.classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers.rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.classifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisualizePanel;"); classSource.append(" public class Out1 {"); classSource.append(" public static void main(String[] args) throws IOException , Exception {"); classSource.append("BufferedReader breader= null;breader=new BufferedReader(new FileReader(\"C:/Users/Phd/Downloads/vowel.arff \"));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttributes() - 1);"); classSource.append(" breader.close();"); classSource.append(" Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));"); classSource.append(p); classSource.append(" System.out.println(\"[----------Printing Fitness----------]\"+ y); "); classSource.append(" File f = new File( \"c:\\\\Users\\\\pc\\\\Desktop\\\\myobj.obj\"); ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();"); classSource.append("}"); classSource.append("}"); //------------------------------------------------------------------------------------------------------------     //----------------------Compiling and Runing the individual--------------------------------------------------- compileAndRun(className, classSource.toString()); System.out.println("----***------Finish Compiling -----***------\n"); //------------------------------------------------------------------------------------------------------------   //----------------------reading the fitness value of the individual-------------------------------------------   ObjectInputStream restore = new ObjectInputStream(new FileInputStream("c:\\Users\\Phd\\Desktop\\myobj.obj")); int ftnss = restore.readInt(); restore.close();   //------------------------------------------------------------------------------------------------------------           return ftnss; }   public void getFitness(Individual i) { try{ i.getFitness().setDouble(this.evaluateString(i.getPhenotype())); } catch(IOException ex){ } }   public boolean canCache() { return true; }   }

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voila le code complet

toujours pas :aie:... ce n'est pas reproductible (il manque plein de classes de mon côté... Constants, FitnessFunction, Phenotype, BadParameterException)

de plus, il faudrait essayer de simplifier le code pour en retirer tout ce qui n'est pas important dans la résolution de ton problème actuel...

anyway, pourquoi dans ton code tu as ajouté des paramètres à la ligne de commande qui exécute le code compilé, mais pas au code qui compile ton programme (cf. méthodes compile)?

EDIT: ps: je ne sais pas d'où vient la classe BadParameterException, mais tu ferais mieux dans la mesure du possible, de réutiliser les classes d'exceptions fournies par Java par défaut: regarde du côté d'IllegalArgumentException

j'ai ajouter "-classpath", "weka.jar", a la methode Compile ,
mnt pas d'erreur sur weka mais l'erreur c'est : impossible de trouver ou charger la class principale Out1 ?!!

Code:

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//---------------------------------Compile   public static boolean compile(File filename, String classsource) throws IOException {   // Create file FileWriter fstream = null; try { fstream = new FileWriter(filename); BufferedWriter out = new BufferedWriter(fstream); out.write(classsource); out.flush(); } finally { if (fstream != null) { try { fstream.close(); } catch (IOException e) { // silent } } }   Process processCompile = Runtime.getRuntime().exec( new String[] { JAVA_BIN_PATH + "javac.exe", "-classpath", "./weka.jar", FOLDER + "Out1.java" } ); return printResult("Compile", processCompile)==0;   } //------------------run public static void run(File file) throws IOException { System.out.println("Run java program: " + file);   Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "Out1" },null, file.getParentFile());   printResult("Run", processRun); }   private static String getClassName(File file) { String name = file.getName(); return name.substring(0,name.indexOf('.')); }

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voila ce que j'ai fait ,

Code:

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[javadoc] Loading source files for package FitnessEvaluation.LSystem... [javadoc] Loading source files for package FitnessEvaluation.MaxProblem... [javadoc] Loading source files for package FitnessEvaluation.ParityProblem... [javadoc] Loading source files for package FitnessEvaluation.PatternMatch... [javadoc] Loading source files for package FitnessEvaluation.RoyalTree... [javadoc] Loading source files for package FitnessEvaluation.SantaFeAntTrail... [javadoc] Loading source files for package FitnessEvaluation.Sudoku... [javadoc] Loading source files for package FitnessEvaluation.SymbolicRegression... [javadoc] Loading source files for package FitnessEvaluation.externalInterpreters.ParityProblem ... [javadoc] Loading source files for package FitnessEvaluation.externalInterpreters.SantaFeAntTra il... [javadoc] Loading source files for package FitnessEvaluation.externalInterpreters.SymbolicRegre ssion... [javadoc] Loading source files for package FitnessEvaluation.util... [javadoc] Loading source files for package Fractal... [javadoc] Loading source files for package Individuals... [javadoc] Loading source files for package Individuals.FitnessPackage... [javadoc] Loading source files for package Individuals.Populations... [javadoc] Loading source files for package Main... [javadoc] Loading source files for package Main.Tutorials... [javadoc] Loading source files for package Mapper... [javadoc] Loading source files for package Operator... [javadoc] Loading source files for package Operator.Operations... [javadoc] Loading source files for package Operator.Operations.ContextSensitiveOperations... [javadoc] Loading source files for package Parameter... [javadoc] Loading source files for package UI... [javadoc] Loading source files for package Util... [javadoc] Loading source files for package Util.Random... [javadoc] Loading source files for package Util.Statistics... [javadoc] Loading source files for package Util.Structures... [javadoc] Loading source files for package com.rie.rieps.engine... [javadoc] Loading source files for package com.rie.rieps.engine.color... [javadoc] Loading source files for package com.rie.rieps.engine.factories... [javadoc] Loading source files for package com.rie.rieps.engine.fonts... [javadoc] Loading source files for package com.rie.rieps.engine.image... [javadoc] Loading source files for package com.rie.rieps.exception... [javadoc] Loading source files for package com.rie.rieps.simpletest... [javadoc] Constructing Javadoc information... [javadoc] Standard Doclet version 1.7.0_45 [javadoc] Building tree for all the packages and classes... [javadoc] C:\Users\Phd\Desktop\MyTrial\GEVA\src\Fractal\GuiComp.java:160: warning - @return tag has no arguments. [javadoc] C:\Users\Phd\Desktop\MyTrial\GEVA\src\Util\GEVAHelper.java:74: warning - @return tag has no arguments. [javadoc] Building index for all the packages and classes... [javadoc] Building index for all classes... [javadoc] Generating C:\Users\Phd\Desktop\MyTrial\GEVA\docs\api\help-doc.html... [javadoc] 2 warnings   dist: [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GEVA\dist\docs [copy] Copying 555 files to C:\Users\Phd\Desktop\MyTrial\GEVA\dist\docs [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GEVA\dist [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GEVA\dist [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GEVA\dist [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GEVA\dist\src [copy] Copying 194 files to C:\Users\Phd\Desktop\MyTrial\GEVA\dist\src   clean.module.gui_rc1_exp:   clean:   get-jdk:   pre-compile:   compile.module.gui_rc1_exp.production: [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\out\production\GUI_rc1_exp [javac] C:\Users\Phd\Desktop\MyTrial\GUI\build.xml:146: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds [javac] Compiling 87 source files to C:\Users\Phd\Desktop\MyTrial\GUI\out\production\GUI_rc1_ exp [javac] Note: Some input files use unchecked or unsafe operations. [javac] Note: Recompile with -Xlint:unchecked for details. [copy] Copying 4 files to C:\Users\Phd\Desktop\MyTrial\GUI\out\production\GUI_rc1_exp   compile.module.gui_rc1_exp.tests:   compile.module.gui_rc1_exp:   jar: [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist\Grammars [copy] Copying 18 files to C:\Users\Phd\Desktop\MyTrial\GUI\dist\Grammars [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist\Parameters [copy] Copying 15 files to C:\Users\Phd\Desktop\MyTrial\GUI\dist\Parameters [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist\lib [copy] Copying 4 files to C:\Users\Phd\Desktop\MyTrial\GUI\dist\lib [jar] Building jar: C:\Users\Phd\Desktop\MyTrial\GUI\dist\GUI.jar   javadoc: [javadoc] Generating Javadoc [javadoc] Javadoc execution [javadoc] Loading source files for package Fractal... [javadoc] Loading source files for package UI... [javadoc] Loading source files for package UI.Run... [javadoc] Loading source files for package UI.Run.JSci... [javadoc] Loading source files for package Util... [javadoc] Loading source files for package com.rie.rieps.engine... [javadoc] Loading source files for package com.rie.rieps.engine.color... [javadoc] Loading source files for package com.rie.rieps.engine.factories... [javadoc] Loading source files for package com.rie.rieps.engine.fonts... [javadoc] Loading source files for package com.rie.rieps.engine.image... [javadoc] Loading source files for package com.rie.rieps.exception... [javadoc] Loading source files for package com.rie.rieps.simpletest... [javadoc] Constructing Javadoc information... [javadoc] Standard Doclet version 1.7.0_45 [javadoc] Building tree for all the packages and classes... [javadoc] C:\Users\Phd\Desktop\MyTrial\GUI\src\UI\GEVAChoiceProperty.java:288: warning - @retur n tag has no arguments. [javadoc] C:\Users\Phd\Desktop\MyTrial\GUI\src\UI\Run\GEVAGraphPaneItem.java:110: warning - @re turn tag has no arguments. [javadoc] C:\Users\Phd\Desktop\MyTrial\GUI\src\Util\GEVAHelper.java:74: warning - @return tag h as no arguments. [javadoc] Building index for all the packages and classes... [javadoc] Building index for all classes... [javadoc] Generating C:\Users\Phd\Desktop\MyTrial\GUI\docs\api\help-doc.html... [javadoc] 3 warnings   dist: [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist\docs [copy] Copying 290 files to C:\Users\Phd\Desktop\MyTrial\GUI\dist\docs [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GUI\dist [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GUI\dist [copy] Copying 1 file to C:\Users\Phd\Desktop\MyTrial\GUI\dist [mkdir] Created dir: C:\Users\Phd\Desktop\MyTrial\GUI\dist\src [copy] Copying 98 files to C:\Users\Phd\Desktop\MyTrial\GUI\dist\src   build: [copy] Copying 2 files to C:\Users\Phd\Desktop\MyTrial\bin [jar] Building jar: C:\Users\Phd\Desktop\MyTrial\GEVA_GUI.jar   all:   BUILD SUCCESSFUL Total time: 1 minute 28 seconds   C:\Users\Phd\Desktop\MyTrial>cd bin   C:\Users\Phd\Desktop\MyTrial\bin>java -classpath GEVA.jar Main.Tutorials.Tutorial6 Loading properties from file system: C:/Users/Phd/Desktop/MyTrial/param/Parameters/HelloWorld.pro perties mutation_probability=0.02 tail_percentage=0.5 initialiser=Operator.RampedHalfAndHalfInitialiser generations=2 replacement_type=generational generation_gap=0.5 individual_catch_interval=-1 main_class=Main.Run crossover_operation=Operator.Operations.SinglePointCrossover evaluate_elites=false derivation_tree=Mapper.DerivationTree userpick_size=2 grammar_file=C:/Users/Phd/Desktop/javaFun.bnf grow_probability=0.5 population_size=4 output= fitness_function=FitnessEvaluation.PatternMatch.MyFitness max_wraps=1 selection_operation=Operator.Operations.TournamentSelect crossover_probability=0.7 mutation_operation=Operator.Operations.IntFlipMutation max_depth=2 elite_size=3 word=rome tournament_size=3 fixed_point_crossover=false stopWhenSolved=true ---------------------- [] ---------------------- [] ---------------------- [] ---------------------- [] Output directory is C:\Users\Phd\Desktop\MyTrial\bin\ ----***------double y= eval.pctCorrect() ; -----***------   ----***------Start Compiling File----***------       Run java program: C:\Users\Phd\Desktop\MyTrial\bin\Out1.class Exception in thread "main" java.lang.NoClassDefFoundError: weka/classifiers/C lassifier at java.lang.Class.getDeclaredMethods0(Nat----***------Finish Compiling -----***------ i ve Method) at java.lang.Class.privateGetDeclaredMethods(----***------double y= eval.pctCorrect() ; - ----***------ Class.ja va:----***------Start Compiling File----***------ 25 31) at java.lang.Class.getMethod0(Class.java:2774) at java.lang.Class.getMethod(Class.java:1663) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 6 more       Run java program: C:\Users\Phd\Desktop\MyTrial\bin\Out1.class Exception in threa d----***------Finish Compiling -----***------   "----***------double y= eval.pctCorrect() ; -----***------ m a----***------Start Compiling File----***------ i n" java.lang.NoClassDefFoundError: weka/classifiers/Classifier at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getMethod0(Class.java:2774) at java.lang.Class.getMethod(Class.java:1663) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 6 more       Run java program: C:\Users\Phd\Desktop\MyTrial\bin\Out1.class Exception in thread "main" java.lang.NoClassDefFoundError: weka/classifiers/Cla ssifier at java.----***------Finish Compiling -----***------ la ng.Class.----***------double y= eval.pctCorrect() ; -----***------ g etDe----***------Start Compiling File----***------ c laredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getMethod0(Class.java:2774) at java.lang.Class.getMethod(Class.java:1663) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 6 more       Run java program: C:\Users\Phd\Desktop\MyTrial\bin\Out1.class Exception in thread "main" java.lang.NoClassDefFoundError: weka/classif iers/Classifier at java.lang.----***------Finish Compiling -----***------ Clas s.getDeclaredMe#---Data---thods 0(NaGen FitEvals Time(ms) Invalids BestFit AveFit VarFit AveUsedGenes A veLength AveDTDepthtive Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getMethod0(Class.java:2774) at java.lang.Class.getMethod(Class.java:1663) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader. 0java:366) at java.net.URLClassLoader$1.run(URLClassL oader.java:35 05) at java .security.Acc 17961essContr oller.doPri 0vileg ed(Native Method) at java.net.URLCl 6,000assL oad 6,000e r. 0,000fi nd 0,000Class( U 0,000RL Class 2,000L oader.java:354) ---------------------- [double y= eval.pctCorrect() ; ]a t j---------------------- [double y= eval.pctCorrect() ; ]a va---------------------- [double y= eval.pctCorrect() ; ]. lan---------------------- [double y= eval.pctCorrect() ; ]g.Cl assLoException: java.lang.ArithmeticException: / by zero ader.loadClajava.lang.ArithmeticException: / by zero at Operator.Operations.SinglePointCrossover.getMaxXOPoint(SinglePointCrossover.java:204) at Operator.Operations.SinglePointCrossover.doOperation(SinglePointCrossover.java:141) at Operator.CrossoverModule.perform(CrossoverModule.java:81) at Algorithm.SimplePipeline.step(SimplePipeline.java:63) at Algorithm.MyFirstSearchEngine.step(MyFirstSearchEngine.java:50) at Main.AbstractRun.run(AbstractRun.java:372) at Main.Tutorials.Tutorial6.experiment(Tutorial6.java:48) at Main.Tutorials.Tutorial6.main(Tutorial6.java:122) ss(Cl C:\Users\Phd\Desktop\MyTrial\bin>cd bin

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et je comprends pas l'erreur !

haa ba on avance gentiment...

est-ce qu'un fichier .class a été généré suite à la compilation de ton source?

si oui -> vérifier de où tu lances les commandes, et adapter en conséquence
si non -> surveiller l'output de compilation, il y a peut-être des erreurs qui empêchent la génération du .class.

Citation:

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Envoyé par benooo

public static void run(File file) throws IOException {
System.out.println("Run java program: " + file);

Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "Out1" },null, file.getParentFile());

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rooo mais pourquoi tu a viré les arguments de la commande d'exécution?

tu dois setter le classpath A LA FOIS pour compiler ET pour exécuter, sinon, comment veux-tu que java s'y retrouve?

Code:

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Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 6 more

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ça ça devrait te faire tilt non?

parceque ca me donner l'erreur : impossible de trouver ou charger la class Out1 et quand je les enlever j'ai eu une erreur :

Code:

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Run java program: C:\Users\Phd\Desktop\MyTrial\bin\Out1.class Exception in thread "main" java.lang.NoClassDefFoundError: weka/classifi ers/Classifier at java.lang.Class.getDeclaredMethod----***------Finish Compiling -----***------ s 0(N----***------double y= eval.pctCorrect() ; -----***------ a t----***------Start Compiling File----***------ i ve Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getMethod0(Class.java:2774) at java.lang.Class.getMethod(Class.java:1663) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: weka.classifiers.Classifier at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 6 more

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et apres le Compile j'obtiens Out1.class dans le dossier bin la ou je suis !

Mais pour quoi il n a pas pu charger la class Classifer , j'ai verifier dans weka.jar et il ya Classifier.class ?!

Il devrait, si le classpath était setté correctement...

A toi de trouver, ou de préparer un projet de test que je puisse débugger à la maison ce soir (mais si tu le fais, il doit être MINIMALISTE mais COMPLET: le minimum de code qui simule le problème rencontré, pour que quelqu'un qui n'a pas accès aux mêmes outils&librairies que toi puisse exécuter le code)

ok,
mais pourquoi quand je mets -classpath weka.jar dans compile et run
il me dit impossible de charger ou trouver Out1
et si je la mets que dans compiler il me donne l 'erreur de classifiers.Classifier ?

Je ne sais pas... je t'ai dit tout ce que je pouvais avec les éléments en ma possession... sans pouvoir exécuter et voir tourner l'appli moi-même, je ne sais pas trop quoi te dire...

le premier code c'est MyFitness.java

Code:

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package FitnessEvaluation.PatternMatch; import Exceptions.BadParameterException; import Individuals.Individual; import Individuals.Phenotype; import java.util.Properties; import FitnessEvaluation.FitnessFunction; import Util.Constants; //import jxl.*; //import jxl.Workbook; //import jxl.read.biff.*; //import jxl.write.WriteException; import java.util.Locale; import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.File; import java.io.FileInputStream; import java.io.ObjectInputStream; import java.io.PrintWriter; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.Random; import java.awt.BorderLayout; import java.io.BufferedReader; import java.io.BufferedWriter; /*import weka.core.converters.ArffLoader; import weka.core.*; import weka.classifiers.*; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.Random; import weka.classifiers.evaluation.ThresholdCurve; import weka.classifiers.rules.JRip; import weka.classifiers.rules.OneR; import weka.classifiers.rules.Ridor; import weka.classifiers.rules.Rule; import weka.classifiers.trees.J48; import weka.gui.visualize.PlotData2D; import weka.gui.visualize.ThresholdVisualizePanel;*/   //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* //*************************************************************************************************************************************************************   public class MyFitness implements FitnessFunction {   private static String s;   /** Creates a new instance of MyFitness  */ public MyFitness () { s = "geva"; }   /**      * Creates a new instance of MyFitness      * @param s String to match      */ public MyFitness (String s) { MyFitness .s = s; } public void setProperties(Properties p) { String key = Constants.WORDMATCH_WORD; String value; value = p.getProperty(key,"geva"); MyFitness .s = value; } //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* //************************************************************************************************************************************************************* private static final String FOLDER = "C:\\Users\\Phd\\Desktop\\MyTrial\\bin\\"; private static final String JAVA_BIN_PATH = "C:\\Program Files\\Java\\jdk1.7.0_21\\bin\\";           //----------------------------Compile and Run the file public static void compileAndRun(String className, String source) {   File sourceFile = new File(FOLDER+className+".java"); File classFile = new File(FOLDER+className+".class");   try { if ( compile(sourceFile,source) ) { run(classFile); } } catch (Exception e) {System.err.println("Error: " + e.getMessage());}   } //---------------------------------Compile   public static boolean compile(File filename, String classsource) throws IOException {   // Create file FileWriter fstream = null; try { fstream = new FileWriter(filename); BufferedWriter out = new BufferedWriter(fstream); out.write(classsource); out.flush(); } finally { if (fstream != null) { try { fstream.close(); } catch (IOException e) { // silent } } }   Process processCompile = Runtime.getRuntime().exec( new String[] { JAVA_BIN_PATH + "javac.exe", "-classpath", "./weka.jar", FOLDER + "Out1.java" } ); return printResult("Compile", processCompile)==0;   } //------------------run public static void run(File file) throws IOException { System.out.println("Run java program: " + file);   Process processRun = Runtime.getRuntime().exec(new String[] { JAVA_BIN_PATH + "javaw.exe", "Out1" },null, file.getParentFile());   printResult("Run", processRun); }   private static String getClassName(File file) { String name = file.getName(); return name.substring(0,name.indexOf('.')); }   //-------------------------Print Result private static int printResult(String prog, final Process process) { new Thread() { public void run() { try { InputStream stream = process.getErrorStream(); try { int read; while ((read = stream.read()) != -1) { System.err.print((char) read); } System.err.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); new Thread() { public void run() { try { InputStream stream = process.getInputStream(); try { int read; while ((read = stream.read()) != -1) { System.out.print((char) read); } System.out.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); try { process.waitFor(); return process.exitValue(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); return -1;}   }                                               //************************************************************************************************************************************************************* //****************************************************************------*Fitness*------*********************************************************************** //*************************************************************************************************************************************************************       /**      * Compare a string to the word. Each symbol not matching increases the fitness by 1.      * Max fitness is max(length of the word, phenotype).      * @param p Compared phenotype      * @return Number of missmatches      */ public double evaluateString(Phenotype p) throws IOException{   //----------------------Deleting the Fitness file content value of the individual------------------------------------------- PrintWriter writer = new PrintWriter("c:\\myobj.obj"); writer.print(""); writer.close(); //--------------------------------------------------------------------------------------------------------------------------       //----------------------Creating the whole complete java Program------------------------------------------- System.out.println("----***------"+p+"-----***------\n"); System.out.println("----***------Start Compiling File----***------\n"); String className = "Out1"; StringBuilder classSource=new StringBuilder(); //classSource.append("package out1;"); classSource.append("import java.io.BufferedReader; import java.io.FileReader; import java.io.FileOutputStream;import java.io.ObjectOutputStream; import java.io.IOException; import java.util.Random; import java.awt.BorderLayout;import java.io.BufferedReader;import java.io.BufferedWriter;import weka.core.converters.ArffLoader;import weka.core.*;import weka.classifiers.*;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.Random;import weka.classifiers.evaluation.ThresholdCurve;import weka.classifiers.rules.JRip;import weka.classifiers.rules.OneR;import weka.classifiers.rules.Ridor;import weka.classifiers.rules.Rule;import weka.classifiers.trees.J48;import weka.gui.visualize.PlotData2D;import weka.gui.visualize.ThresholdVisualizePanel;"); classSource.append(" public class Out1 {"); classSource.append(" public static void main(String[] args) throws IOException , Exception {"); classSource.append("BufferedReader breader= null;breader=new BufferedReader(new FileReader(\"C:/Users/Phd/Downloads/vowel.arff \"));Instances train1 = new Instances(breader);train1.setClassIndex(train1.numAttributes() - 1);"); classSource.append(" breader.close();"); classSource.append(" Ridor cls = new Ridor();cls.buildClassifier(train1); Evaluation eval =new Evaluation(train1);eval.crossValidateModel(cls, train1, 10, new Random(1));"); classSource.append(p); classSource.append(" System.out.println(\"[----------Printing Fitness----------]\"+ y); "); classSource.append(" File f = new File( \"c:\\\\Users\\\\pc\\\\Desktop\\\\myobj.obj\"); ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(f)); out.writeDouble(y); out.flush(); out.close();"); classSource.append("}"); classSource.append("}"); //------------------------------------------------------------------------------------------------------------     //----------------------Compiling and Runing the individual--------------------------------------------------- compileAndRun(className, classSource.toString()); System.out.println("----***------Finish Compiling -----***------\n"); //------------------------------------------------------------------------------------------------------------   //----------------------reading the fitness value of the individual-------------------------------------------   ObjectInputStream restore = new ObjectInputStream(new FileInputStream("c:\\Users\\Phd\\Desktop\\myobj.obj")); int ftnss = restore.readInt(); restore.close();   //------------------------------------------------------------------------------------------------------------           return ftnss; }   public void getFitness(Individual i) { try{ i.getFitness().setDouble(this.evaluateString(i.getPhenotype())); } catch(IOException ex){ } }   public boolean canCache() { return true; }   }

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2 eme code c'est : Tutorial6.java

Code:

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package Main.Tutorials;   import Algorithm.MyFirstSearchEngine; import Algorithm.Pipeline; import Algorithm.SimplePipeline; import FitnessEvaluation.FitnessFunction; import Main.AbstractRun; import Mapper.GEGrammar; import Operator.*; import Operator.Operations.*; import Util.Constants; import Util.Random.MersenneTwisterFast; import Util.Statistics.IndividualCatcher; import Util.Statistics.StatCatcher;   public class Tutorial6 extends AbstractRun {   private long startTime; /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ public Tutorial6() { this.rng = new MersenneTwisterFast(); super.propertiesFilePath = "C:/Users/Phd/Desktop/MyTrial/param/Parameters/HelloWorld.properties"; this.startTime = System.currentTimeMillis(); } /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ public void setup() { } /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ @Override public void experiment(String[] args) { try{   //Read the command-line arguments if(this.commandLineArgs(args)) { //Initialize timing the excecution long st = System.currentTimeMillis();   //Create the Main object //Setup the algorithm this.setup(args); //Initialize the algorithm this.init(); //Hack for number of iterations!!?? Create a proper method int its = this.run(); //Print collected data this.printStuff(); //Time the excecution long et = System.currentTimeMillis(); System.out.println("Done running: Total time(Ms) for " + its + " generations was:"+(et-st));   } } catch(Exception e) { System.err.println("Exception: "+e); e.printStackTrace(); } } /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/   public void setup(String[] args) {   this.readProperties(args); GEGrammar grammar = new GEGrammar(this.properties); MyFirstSearchEngine alg = new MyFirstSearchEngine(); initialiser = getInitialiser(grammar, this.rng, this.properties); CrossoverOperation singlePointCrossover = new SinglePointCrossover(this.rng, this.properties); CrossoverModule crossoverModule = new CrossoverModule(this.rng, singlePointCrossover); IntFlipMutation mutation = new IntFlipMutation(this.rng, this.properties); MutationOperator mutationModule = new MutationOperator(this.rng, mutation); SelectionOperation selectionOperation = getSelectionOperation(this.properties, this.rng); SelectionScheme selectionScheme = new SelectionScheme(this.rng, selectionOperation); ReplacementOperation replacementOperation = new ReplacementOperation(this.properties); JoinOperator replacementStrategy = this.getJoinOperator(this.properties, this.rng, selectionScheme.getPopulation(), replacementOperation); FitnessFunction fitnessFunction = getFitnessFunction(this.properties); FitnessEvaluationOperation fitnessEvaluationOperation = new FitnessEvaluationOperation(fitnessFunction); FitnessEvaluator fitnessEvaluator = new FitnessEvaluator(this.rng, fitnessEvaluationOperation); //Statistics StatCatcher stats = new StatCatcher(Integer.parseInt(this.properties.getProperty("generations"))); IndividualCatcher indCatch = new IndividualCatcher(this.properties); stats.addTime(startTime);//Set initialisation time for the statCatcher (Not completly accurate here) StatisticsCollectionOperation statsCollection = new StatisticsCollectionOperation(stats, indCatch, this.properties); Collector collector = new Collector(statsCollection); //End Pipeline pipelineInit = new SimplePipeline(); alg.setInitPipeline(pipelineInit); FitnessEvaluator fitnessEvaluatorInit = new FitnessEvaluator(this.rng, fitnessEvaluationOperation); fitnessEvaluatorInit.setPopulation(initialiser.getPopulation()); collector.setPopulation(initialiser.getPopulation()); pipelineInit.addModule(initialiser); pipelineInit.addModule(fitnessEvaluatorInit); pipelineInit.addModule(collector); Pipeline pipelineLoop = new SimplePipeline(); alg.setLoopPipeline(pipelineLoop); selectionScheme.setPopulation(initialiser.getPopulation()); // The selectionScheme takes one population and splits it replacementStrategy.setPopulation(initialiser.getPopulation());// The replacement takes to populations and joins them (The population that will be joined is here specified in the constructor. crossoverModule.setPopulation(selectionScheme.getPopulation()); // Crossover will be performed on the selected population mutationModule.setPopulation(selectionScheme.getPopulation()); // Mutation will be performed on the selected population fitnessEvaluator.setPopulation(selectionScheme.getPopulation()); // Fitness evaluation will be performed on the selected population collector.setPopulation(initialiser.getPopulation()); pipelineLoop.addModule(selectionScheme); //Select the population according to the in the properties file specified criteria, here tournament selection pipelineLoop.addModule(crossoverModule); //Perform crossover on the setPopulation, here the selected population will be subjected to single point crossover pipelineLoop.addModule(mutationModule); //Mutate the setPopulation. Here int-flip mutation is performed on the selected population pipelineLoop.addModule(fitnessEvaluator); //The population will be assigned new fitness pipelineLoop.addModule(replacementStrategy); //Replace the old population with the selected population. pipelineLoop.addModule(collector); // Finally we set the algorithm this.algorithm = alg;   }   /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ /*oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo*/ public static void main(String[] args) { Tutorial6 mainTutorial6 = new Tutorial6(); mainTutorial6.experiment(args); System.exit(0); }   }

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3 eme c'est un fichier HelloWorld.properties

Code:

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#Fri Aug 29 12:18:13 BST 2008 main_class=Main.Run mutation_probability=0.02 initialiser=Operator.RampedHalfAndHalfInitialiser grow_probability = 0.5 derivation_tree=Mapper.DerivationTree max_depth = 2 tail_percentage=0 generations=2 replacement_type=generational generation_gap=0.5 crossover_operation=Operator.Operations.SinglePointCrossover fixed_point_crossover=false evaluate_elites=false userpick_size=2 grammar_file=C:/Users/Phd/Desktop/javaFun.bnf population_size=4 output= fitness_function=FitnessEvaluation.PatternMatch.MyFitness max_wraps=1 selection_operation=Operator.Operations.TournamentSelect crossover_probability=0.7 mutation_operation=Operator.Operations.IntFlipMutation elite_size=3 tournament_size=3 stopWhenSolved=true word = rome tail_percentage = 0.5 individual_catch_interval = -1

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4eme c'est un fichier : JavaFun.bnf

Code:

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<fun> ::= <header> <header> ::= double y= eval.pctCorrect() ;

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En lancant Tutorials6.java ( le HelloWorld.properties va etre lu donc MyFitness.java va etre lancer automatiquement )
pour executer on fait : ant puis cd bin puis java -classpath GEVA.jar Main.Tutorials.Tutorial6
mais maintenant vous aurez besoin de GEVA http://ncra.ucd.ie/Site/GEVA.html
dedans il faut remplacer Tutorial6.java ( par le code que j'ai donner ) et ajouter (MyFitness.java au: GEVA\src\FitnessEvaluation\PatternMatch)
remplacer aussi le fichier HelloWorld.properties dans : param\Parameters\
et poser JavaFun.bnf sur le desktop
c'est long comme processus mais c'est le plus minimaliste que j'ai pu faire ,
Merci pour votre aide

Ok, on n'a pas tout à fait la même définition de "minimal" :)

Ton problème (réel) n'a rien à voir avec ton implémentation (donc le traitement via cette librairie spécifique), on peut plutôt dire que tu dois faire une appli qui:

- créé un fichier .java référençant une librairie externe
- le compiler
- l'exécuter

Que cela soit GEVA ou autre n'a pas d'importance dans la résolution de ton souci...

J'ai fait un exemple minimaliste qui fonctionne (pour l'exemple, j'ai utilisé un librairie très connue et assez légère, apache commons language en version 2.6, dispo ici: http://commons.apache.org/proper/com...oad_lang.cgi):

Code:

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package temp;   import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream;   public class Temp { private static final String JAVA_BIN_PATH = "C:\\Program Files\\Java\\jdk1.7.0_10\\bin\\";   public static void main(String[] args) throws Exception { StringBuilder sb = new StringBuilder(); sb.append("import org.apache.commons.lang.StringUtils;"); sb.append("public class Test {"); sb.append(" public static void main(String[] arg) {"); sb.append(" System.out.println(StringUtils.trim(\" ça fonctionne! \"));"); sb.append(" }"); sb.append("}"); compileAndRun("Test", sb.toString()); }   public static void compileAndRun(String className, String source) { try { if (compile(className, source)) { run(className); } } catch (Exception e) { e.printStackTrace(); } }   public static boolean compile(String clazz, String source) throws IOException {   FileWriter fstream = null; try { fstream = new FileWriter(new File(clazz + ".java")); BufferedWriter out = new BufferedWriter(fstream); out.write(source); out.flush(); } finally { if (fstream != null) { try { fstream.close(); } catch (IOException e) { // silent } } }   Process processCompile = Runtime.getRuntime().exec( new String[] { JAVA_BIN_PATH + "javac.exe", "-classpath", "./commons-lang-2.6.jar", clazz + ".java" }, null, new File(System.getProperty("user.dir"))); return printResult("Compile", processCompile) == 0;   }   public static void run(String clazz) throws IOException { System.out.println("Run java program: " + clazz);   Process processRun = Runtime.getRuntime().exec( new String[] { JAVA_BIN_PATH + "javaw.exe", "-classpath", ".;./commons-lang-2.6.jar", clazz }, null, new File(System.getProperty("user.dir")));   printResult("Run", processRun); }   private static int printResult(String prog, final Process process) { new Thread() { public void run() { try { InputStream stream = process.getErrorStream(); try { int read; while ((read = stream.read()) != -1) { System.err.print((char) read); } System.err.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); new Thread() { public void run() { try { InputStream stream = process.getInputStream(); try { int read; while ((read = stream.read()) != -1) { System.out.print((char) read); } System.out.println(); } finally { try { stream.close(); } catch (IOException e) { // silent } } } catch (IOException e) { e.printStackTrace(); } }; }.start(); try { process.waitFor(); return process.exitValue(); } catch (InterruptedException e) { e.printStackTrace(); return -1; } } }

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Pour info, lors de l'exécution, il faut ajouter le répertoire courant dans le classpath (le ".;" dans le code d'exécution), mais ce n'est pas nécessaire lors de la compilation (oui c'est bizarre, mais c'est quelque chose à savoir...)

bon courage!

;)

:ccool: mais c'est le vilain ".;" qui causait le probleme , c'est bon maintenant ça marche tres bien :D