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

class Diamond_Frame extends JFrame{

    public Diamond_Frame(){
        setSize(640,480);
        setDefaultCloseOperation(3);
        setVisible(true);
        //add(new Diamond_Panel());
        add(new Diamond_Panel3(this));
    }
    public static void main(String args[]){
        EventQueue.invokeLater(()-> new Diamond_Frame());
    }
}