import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
    
public class Stop2 extends JApplet 
{
    
	public Stop2 ( )   
    	{	
		StopWatchRunner2 watch = new StopWatchRunner2();
		watch.setBackground(Color.gray);
		getContentPane().add(watch, BorderLayout.CENTER);
	}
}
    
class StopWatchRunner2 extends JPanel implements ActionListener 
{

	private boolean running, paused;
	private long startTime;
	private double seconds, time;
	private Timer timer;
	private JButton starter, pauser, reset;
	private Font mine;

	public StopWatchRunner2() 
    	{        			
		setLayout(null);
		setUpValues ( );
		mine = new Font ( "Serif", Font.PLAIN, 48 );
	
		starter = new JButton ( "START" );
	       	starter.addActionListener ( this );
		starter.setLocation ( 10, 10 ); 
		starter.setSize ( 130, 80 ); 
	       	this.add ( starter );

		pauser = new JButton ( "PAUSE" );
	       	pauser.addActionListener ( this );
		pauser.setLocation ( 150, 10 ); 
		pauser.setSize ( 130, 80 ); 
	       	this.add ( pauser );

		reset = new JButton ( "RESET" );
	       	reset.addActionListener ( this );
		reset.setLocation ( 290, 10 ); 
		reset.setSize ( 130, 80 ); 
	       	this.add ( reset );
	}

	public void setUpValues ( )   
    	{
		timer = null;
		running = paused = false;
		startTime = 0;
		seconds = time = 0.0;
	}

	public void paintComponent ( Graphics g )   
    	{
		super.paintComponent ( g );
		g.setColor ( Color.white );
		g.setFont ( mine );
		g.drawString ( "Running:  " + Format.left ( time, 0, 1 ) + " seconds", 20, 140 );
	}

	public void actionPerformed(ActionEvent evt) 
    	{
	      	String command = evt.getActionCommand();
		if ( command != null )   
        	{
			if ( command.equals ( "START" ) )   
            		{
				// Record the time and start the stopwatch.
				if ( paused )   
                		{
					startTime =  evt.getWhen() - (long)(1000 * seconds);  //Time when mouse was clicked.
					paused = false;
				}
				else
					startTime =  evt.getWhen();
				running = true;
				if (timer == null) 
                		{
					timer = new Timer ( 100, this );
					timer.start ( );
				}
				else
					timer.restart ( );
			}
			else if ( command.equals ( "PAUSE" ) && running && !paused )   
            		{
				// Stop the stopwatch.  Compute the elapsed time since the
				// stopwatch was started and display it.
				timer.stop();
				long endTime = evt.getWhen();
				seconds = (endTime - startTime) / 1000.0;
				paused = true;
			}
			else if ( command.equals ( "RESET" ) )   
            		{
				timer.stop();
				timer = null;
				setUpValues ( );
			}
		}
		if ( !paused )   
        	{
			if ( running )
				time = (System.currentTimeMillis() - startTime) / 1000.0;
			else
				time = 0.0;
		}
		this.repaint ( );
	}
}