pro0622 - プログラム倉庫

import java.awt.*;
import java.awt.event.*;
class pro0622 extends Frame {
    public static void main(String [] args) {
        Frame f=new pro0622();
        f.setTitle("pro0622");
        f.setSize(300,300);
        f.setVisible(true);
    }
pro0622(){addWindowListener(new stopwin());}
class stopwin extends WindowAdapter{
    public void windowClosing(WindowEvent we){System.exit(0);}
    }

public void paint(Graphics g){
g.setColor(Color.blue);    
g.fillRect(10,10,150,150);
  }
}