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

public class Right extends JFrame {
	public Right(){
		JButton b1=new JButton("sleep");
		JButton b2=new JButton("Hello");
		b1.addActionListener(
				new ActionListener()
				{
					public void actionPerformed(ActionEvent event)
					{
						try{
							Thread.currentThread().sleep(5000);
						   }catch(Exception e){}
					}
				}
			);
		
		b2.addActionListener(
				new ActionListener(){
					public void actionPerformed(ActionEvent event)
					{
					   System.out.println("hello world");
					}
				}
				);
		getContentPane().setLayout(new FlowLayout());
		getContentPane().add(b1);
		getContentPane().add(b2);
		pack();
		show();
	}
   public static void main(String[] args)
   {
	   new Right();
   }
}