BUT2/DEV/DEV3.2/Controle_Machine_Blanc/Q1_Annulation/Q4Main.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Q4Main{
    public static void main(String[] args) {

	Fenetre fenetre = new Fenetre();
	fenetre.setVisible(true);
    }
}