Java开发网 - 求助 :) (处理鼠标事件)

Topic: 求助 :) (处理鼠标事件)

1.求助 :) (处理鼠标事件)

Posted by: LLL_QQQ
Posted on: 2004-09-13 15:37

处理鼠标事件,单击鼠标键时,即显示下一张卡片,到最后一张,则显示第一张.可是单击鼠标时,则程序中断...为何?
源程序:
import java.awt.*;
import java.awt.event.*;

public class CardTest extends MouseAdapter {
  Panel p1,p2,p3,p4,p5;
  Label l1,l2,l3,l4,l5;

  //define a CardLayout object

CardLayout myCard;
Frame f;

public static void main(String args[]) {
    CardTest ct=new CardTest();
    ct.init();
    }

    public void init(){
      Frame f=new Frame("hello----");
      myCard=new CardLayout();
      f.setLayout(myCard);

      p1=new Panel();
      p2=new Panel();
      p3=new Panel();
      p4=new Panel();
      p5=new Panel();

      l1=new Label("THis is the first Panel");
      p1.add(l1);
      p1.setBackground(Color.yellow);

      l2=new Label("THis is the second Panel");
      p2.add(l2);
      p2.setBackground(Color.green);

      l3=new Label("THis is the third Panel");
      p3.add(l3);
      p3.setBackground(Color.magenta);

      l4=new Label("THis is the fourth Panel");
      p4.add(l4);
      p4.setBackground(Color.magenta);

      l5=new Label("THis is the fifth Panel");
      p5.add(l5);
      p5.setBackground(Color.cyan);

      p1.addMouseListener(this);
      p2.addMouseListener(this);
      p3.addMouseListener(this);
      p4.addMouseListener(this);
      p5.addMouseListener(this);

      f.add(p1,"First");
      f.add(p2,"Second");
      f.add(p3,"Third");
      f.add(p4,"Fourth");
      f.add(p5,"Fifth");

      myCard.show(f,"First");
      f.setSize(300,200);
f.show();


    }
public void mouseClicked(MouseEvent e){
  myCard.next(f);
}


  }

处理鼠标事件,单击鼠标键时,即显示下一张卡片,到最后一张,则显示第一张