// Lars Sorensen TYJava in 21 excode 
// page 257  -  GUI components....
//

  import java.awt.*;

 public class ButtonActions extends java.applet.Applet
   {

   public void init()
     {
	setBackground(Color.black);
        setForeground(Color.white);

        add(new Button("Red"));
        add(new Button("Blue"));
        add(new Button("Green"));
        add(new Button("White"));
        add(new Button("Black"));

     // throw in a text area for the fun of it...

      String str = "Once upon a midnight dreary, while I pondered, weak and weary,\n" +
      "Over many a quaint and curious volume of forgotten lore,\n" +
      "While I nodded, nearly napping, suddenly there came a tapping,\n" +
      "As of someone gently rapping, rapping at my chamber door.\n" +
      "\"Tis some visitor,\" I muttered, \"tapping at my chamber door - \n" +
      "Only this, and nothing more.\"\n";

      add(new TextArea(str,10,60));

     }

   public boolean action(Event evt, Object arg)
     {
        if ( evt.target instanceof Button)
          changeColor((String)arg);
	return true;
     }

   void changeColor(String bname)
     {
        if (bname.equals("Red")) setBackground(Color.red);
        else if (bname.equals("Blue")) setBackground(Color.blue);
	else if (bname.equals("Green")) setBackground(Color.green);
	else if (bname.equals("White")) setBackground(Color.white);
        else setBackground(Color.black);
        repaint();
     }

 }  // end of applet ButtonActions