import java.awt.Graphics;
import java.awt.Dimension;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class TimingIsEverything extends java.applet.Applet {
   
   public long firstClickTime = 0;
   public String displayStr;
   
   public void init() {
      displayStr = "Double Click Me";
      addMouseListener(new MyAdapter());
   }
   public void paint(Graphics g) {
      g.drawRect(0, 0, getSize().width-1, getSize().height-1);
      g.drawString(displayStr, 40, 30);
   }
   class MyAdapter extends MouseAdapter {
      public void mouseClicked(MouseEvent evt) {
         long clickTime = System.currentTimeMillis();
         long clickInterval = clickTime - firstClickTime;
         if (clickInterval < 300) {
            displayStr = "Double Click!! (Interval = "
               + clickInterval + ")";
            firstClickTime = 0;
         } else {
            displayStr = "Single Click!!";
            firstClickTime = clickTime;
         }
         repaint();
      }
   }
}