testpanel.java

针对越来越多的用户喜欢JAVA

import java.awt.*;
public class TestPanel
{
  public static void main(String[] args)
  {
        Frame fm1 = new Frame("Hello");
        Panel pn1 = new Panel();
        Panel pn2 = new Panel();
        Panel pn3 = new Panel();
        fm1.setSize(400,350);
        fm1.setBackground(Color.gray);
        fm1.setLayout(null);
        pn1.setSize(100,100);
        pn1.setBackground(Color.red);
        pn1.setLocation(0,50);
        pn2.setSize(100,100);
        pn2.setBackground(Color.yellow);
        pn2.setLocation(100,150);
        pn3.setSize(100,100);
        pn3.setBackground(Color.green);
        pn3.setLocation(200,250);
        fm1.add(pn1);
        fm1.add(pn2);
        fm1.add(pn3);
        fm1.setVisible(true);
  }
}