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

class Screan{
public static void main(String p[]){
	CenteredFrame myframe=new CenteredFrame();
myframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myframe.setVisible(true);
}
}
class CenteredFrame extends JFrame{
	public CenteredFrame(){
		Toolkit kit=Toolkit.getDefaultToolkit();
Dimension screensize=kit.getScreenSize();
	
    	int  screenheight=screensize.height;
        int	screenwidth=screensize.width;
        Container c=getContentPane();
        c.setBackground(Color.cyan);
        JButton b1=new JButton("Button Center");
        c.add("Center",b1);
         c.add("South",new JButton("Button Button"));
          c.add("West",new JButton("Button Left"));
           c.add("East",new JButton("Button Rity"));
           c.add("North",new JButton("Button Up"));
           JMenuBar menuBar=new JMenuBar();
           setJMenuBar(menuBar);
           JMenu fileMenu=new JMenu("file");
           menuBar.add(fileMenu);
           
           JMenuBar menuBar1=new JMenuBar();
           setJMenuBar(menuBar1);
           JMenu fileMenu1=new JMenu("Edit");
           menuBar1.add(fileMenu1);
           
           
           JMenuItem newmenuItem=new JMenuItem("new");
           fileMenu1.add(newmenuItem);
           
   setSize(screenwidth /2,screenheight /2);
   setLocation(screenwidth /4,screenheight /4);
Image img =kit.getImage("screan.gif");
setIconImage(img);
windowCloser wc=new windowCloser();
this.addWindowListener(wc);
setTitle("CenterFrame");
}
private class windowCloser extends WindowAdapter{
	public void windowClosing(WindowEvent event){
		if(JOptionPane.showConfirmDialog(null,"are you sure","",1)==0)
		{
			System.out.print("close frame");
System.exit(0);
}else{
	System.out.print("not end frame");
}
}}}