lancer un programmre en ligne de commande
bonjour,
j'ai deux programmes
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| package b;
public class point {
private int a,b;
point(int x,int y)
{
this.a=x;
this.b=y;
}
public void somme(point p1, point p2)
{
this.a=p1.a+p2.a;
this.b=p1.b+p2.b;
}
public int abcisse()
{
return this.a;
}
public int ordonne()
{
return this.b;
}
public int surface()
{
return (this.a*this.b);
}
public void somme()
{
}
} |
et
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| /**
* @(#)classepoint.java
*
* classepoint application
*
* @author
* @version 1.00 2017/9/26
*/
import b.*;
public class classepoint {
public static void main(String[] args) {
point d=new point (3,4);
point e=new point (5,6);
point z=new point (1,2);
int surf;
z.somme(d,e);
surf=z.surface();
System.out.println(z.abcisse());
System.out.println(z.ordonne());
System.out.println("la surface est : " + surf);
System.out.println("Hello World!");
}
} |
j'ai placé les.java dans users
mais je n'arrive pas a les compiler
j'ai créé un dossier "b" correspondant a mon package b , je compile
mais celui qui import "b" je ne sais ou le mettre et de toute facon il ne compile pas
C:\Users\jm18c>cd b
C:\Users\jm18c\b>javac point.java
C:\Users\jm18c\b>cd..
C:\Users\jm18c>javac classepoint.java
classepoint.java:14: error: point(int,int) is not public in point; cannot be accessed from outside package
point d=new point (3,4);
^
classepoint.java:15: error: point(int,int) is not public in point; cannot be accessed from outside package
point e=new point (5,6);
^
classepoint.java:16: error: point(int,int) is not public in point; cannot be accessed from outside package
point z=new point (1,2);
^
3 errors
C:\Users\jm18c>cd b
C:\Users\jm18c\b>javac classepoint.java
classepoint.java:9: error: package b does not exist
import b.*;
^
merci par avance
