awttest.java

这是我们上java课时自己编的几个测试小程序

/**
 * @(#)awtTest.java
 *
 *
 * @author 
 * @version 1.00 2007/11/11
 */

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.awt.event.AdjustmentListener;
import java.util.EventListener;

public class awtTest extends Applet implements AdjustmentListener{
 Scrollbar sb1,sb2,sb3;
 Label l1,l2,l3;
 Panel p1,p2;
 public void init(){
  sb1=new Scrollbar(Scrollbar.HORIZONTAL,100,10,30,255);
  sb2=new Scrollbar(Scrollbar.HORIZONTAL,100,30,10,255);
  sb3=new Scrollbar(Scrollbar.HORIZONTAL,100,30,10,255);
  sb1.addAdjustmentListener(this);
  sb2.addAdjustmentListener(this);
  sb3.addAdjustmentListener(this);
  p1=new Panel();
  p2=new Panel();
  
  l1=new Label("                  ");
  l2=new Label("                  ");
  l3=new Label("                  ");
  
  p1.add(sb1);
  p1.add(sb2);
  p1.add(sb3);
  p2.add(l1);
  p2.add(l2);
  p2.add(l3);
  
  
  this.add(p2,BorderLayout.EAST);
  this.add(p1,BorderLayout.CENTER);
 }

 /**
  * Method adjustmentValueChanged
  *
  *
  * @param e
  *
  */
 public void adjustmentValueChanged(AdjustmentEvent e) {
  // TODO: Add your code here
  int x=sb1.getValue();
  int y=sb2.getValue();
  int z=sb3.getValue();
  Color color=new Color(x,y,z);
  l1.setBackground(color);
  l2.setBackground(color);
  l3.setBackground(color);
 }
}