actionlistenerdemo2.java

java 完全探索的随书源码

// ActionListenerDemo2.java

import java.awt.*;
import java.net.*;
import java.applet.*;
import java.awt.event.*;

class MakeSomeNoise implements ActionListener
{
   public void actionPerformed (ActionEvent e)
   {
      try
      {
         String id = e.getActionCommand ();
         URL url = new URL ("file:" + id + ".au");
         AudioClip ac = Applet.newAudioClip (url);
         ac.play ();
      }
      catch (MalformedURLException e2) {}
   }
}

public class ActionListenerDemo2 extends Frame
{
   ActionListenerDemo2 (String title)
   {
      super (title);

      String [] cursorNames =
      {
         "DEFAULT_CURSOR",
         "CROSSHAIR_CURSOR",
         "TEXT_CURSOR",
         "WAIT_CURSOR",
         "HAND_CURSOR",
         "MOVE_CURSOR",
         "N_RESIZE_CURSOR",
         "S_RESIZE_CURSOR",
         "E_RESIZE_CURSOR",
         "W_RESIZE_CURSOR",
         "NE_RESIZE_CURSOR",
         "NW_RESIZE_CURSOR",
         "SE_RESIZE_CURSOR",
         "SW_RESIZE_CURSOR"
      };

      int [] cursorTypes =
      {
         Cursor.DEFAULT_CURSOR,
         Cursor.CROSSHAIR_CURSOR,
         Cursor.TEXT_CURSOR,
         Cursor.WAIT_CURSOR,
         Cursor.HAND_CURSOR,
         Cursor.MOVE_CURSOR,
         Cursor.N_RESIZE_CURSOR,
         Cursor.S_RESIZE_CURSOR,
         Cursor.E_RESIZE_CURSOR,
         Cursor.W_RESIZE_CURSOR,
         Cursor.NE_RESIZE_CURSOR,
         Cursor.NW_RESIZE_CURSOR,
         Cursor.SE_RESIZE_CURSOR,
         Cursor.SW_RESIZE_CURSOR
      };

      Panel p = new Panel ();
      for (int i = 0; i < cursorNames.length; i++)
      {
           Button b = new Button (cursorNames [i]);
           b.setActionCommand ("" + i);
           b.setCursor (Cursor.getPredefinedCursor (cursorTypes [i]));
           b.addActionListener (new MakeSomeNoise ());
           p.add (b);
      };
      add (p);

      setSize (450, 200);

      setVisible (true);
   }

   public static void main (String [] args)
   {
      new ActionListenerDemo2 ("Action Listener Demo2");
   }
}