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

public class Ex1
{
    public static void main(String[] args) 
    {
        JFrame fenetre = new JFrame();

        fenetre.setSize(500, 300);
        fenetre.setLocation(100, 100);
        fenetre.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        Formes frm = new Formes();

        fenetre.add(frm, BorderLayout.CENTER);
        fenetre.setVisible(true);
    }
}