Page 1 of 2. Exercice4.java. 04/11/09 16:06. //Exercice pris du livre de R.
Chevallier, Java 5 import java.awt.*; import java.awt.event.*; import javax.swing.*;
class Fenetre extends JFrame implements ActionListener. { private JComboBox
cb1,cb2,cb3; private JTextField r1,r2,r3,resultat; private JButton calcul; public
Fenetre(). 
