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| import java.awt.* ;
import java.awt.event.*;
class Fenetre extends Frame {
static int nb = 3;
static String checkboxemprunts[];
static double checkboxvaleurs[];
protected Panel p,p1,p2,p3,p4;
protected TextArea texte;
protected Button bouton1 ;
protected CheckboxGroup cbg;
protected Checkbox chb1, chb2, chb3;
protected Choice c;
protected TextField tf1, tf2;
protected Delegue delegue;
protected Adaptateur adapt;
public static void initemprunts() {
checkboxemprunts = new String[nb];
checkboxvaleurs = new double[nb];
checkboxemprunts [0]= "immobilier"; checkboxvaleurs[0]= 0.05;
checkboxemprunts[1]="achat de véhicule"; checkboxvaleurs[1]=0.06;
checkboxemprunts[2]="consommation"; checkboxvaleurs[2]=0.08;
}
Fenetre() {
p=new Panel();
p.setLayout(new GridLayout(4,1));
p1=new Panel();
p1.setLayout(new FlowLayout());
p1.add(new Label("Type d'emprunt"));
cbg=new CheckboxGroup();
chb1=new Checkbox("immobilier", cbg, true);
p1.add(chb1);
chb2=new Checkbox("achat de véhicule", cbg, false);
p1.add(chb2);
chb3=new Checkbox("consommation", cbg, false);
p1.add(chb3);
p.add(p1);
p2=new Panel();
p2.setLayout(new FlowLayout());
p2.add(new Label("Montant demandé"));
tf1=new TextField(10);
p2.add(tf1);
p2.add(new Label("Nombres d'années de remboursement "));
c=new Choice();
c.addItem("3");
c.addItem("4");
c.addItem("5");
c.addItem("6");
c.addItem("7");
c.addItem("8");
c.addItem("9");
c.addItem("10");
c.addItem("11");
c.addItem("12");
c.addItem("13");
c.addItem("14");
c.addItem("15");
c.addItem("16");
c.addItem("17");
c.addItem("18");
c.addItem("19");
c.addItem("20");
c.addItem("21");
c.addItem("22");
c.addItem("23");
c.addItem("24");
c.addItem("25");
c.addItem("26");
c.addItem("27");
c.addItem("28");
c.addItem("29");
c.addItem("30");
p2.add(c);
p.add(p2);
p3=new Panel();
p3.setLayout(new FlowLayout());
p3.add(new Label("Revenu mensuel"));
tf2=new TextField(10);
p3.add(tf2);
p.add(p3);
p4=new Panel();
p4.setLayout(new FlowLayout());
bouton1=new Button("Valider");
p4.add(bouton1);
p.add(p4);
add("North", p);
texte=new TextArea();
add("South", texte);
delegue=new Delegue(this);
adapt=new Adaptateur(delegue);
this.addWindowListener(adapt);
bouton1.addActionListener(adapt);
}
}
class Delegue {
protected Fenetre fen;
Delegue(Fenetre f){
fen=f;
}
public void quitter() {
System.exit(0);
}
void calcule() {
double montant;
string tf1=fen.tf1.getText();
double m=new Double(tf1).doubleValue(); // montant demandé
string c=fen.c.getSelectedItem();
int nb=new Integer(c).intValue(); //nombres d'années
string tf2=fen.tf2.getText();
double r=new Double(tf2).doubleValue(); // revenu mensuel
montant= m*(
checkboxvaleurs/
(1-Math.pow(1+ checkboxvaleurs, -nb))
)
/12;
w=new Double(montant).toString();
}
public void afficheres() {
String res="Le type d'emprunt choisi est : " + fen.cbg.getSelectedCheckbox().getLabel();
res=res + "\nVous souhaitez emprunter : " + fen.tf1.getText();
res=res + " Euros";
res=res + "\nSur une période de : " + fen.c.getSelectedItem();
res=res + " ans";
res=res + "\nVotre revenu mensuel est de : " + fen.tf2.getText();
res=res + " Euros";
fen.texte.setText(res);
fen.texte.setText(w);
}
}
class Adaptateur implements WindowListener, ActionListener {
protected Delegue delegue;
Adaptateur(Delegue d) {
delegue=d;
}
public void windowOpened(WindowEvent e) {}
public void windowClosing(WindowEvent e) {
delegue.quitter();
}
public void windowClosed(WindowEvent e){}
public void windowIconified(WindowEvent e){}
public void windowDeiconified(WindowEvent e){}
public void windowActivated(WindowEvent e){}
public void windowDeactivated(WindowEvent e){}
public void actionPerformed(ActionEvent e) {
delegue.afficheres();
}
}
public class Emprunt {
public static void main (String args[]) {
Fenetre f=new Fenetre();
f.pack();
f.show();
}
} |
