mouseadapter.java

来自「Java课程中所有的可运行程序 全部都是java课程中所涉及到的源码」· Java 代码 · 共 48 行

import java.awt.*;
import java.awt.event.*;

public class mouseadapter extends Frame{

 Button b=new Button("test mouse");

    public  mouseadapter(){
        setLayout(new FlowLayout());
         b.addMouseListener(new MyMouseListener());//参数为新建的MouseAdapter继承类
         b.addMouseMotionListener(new MyMouseMotionListener());///参数为新建的MouseMotionAdapter继承类
         add(b);

      this.setSize(400,300);
        this.setVisible(true);
    }

public static void main(String[] args){
  mouseadapter nowframe=new mouseadapter();
  nowframe.addWindowListener(new WindowAdapter(){
   public void windowClosing(WindowEvent e){
    System.exit(0);
         }
  });
  }
}
class MyMouseListener extends MouseAdapter
//此类继承MouseAdapter,这里只实现了mouseEntered()及mouseClicked()方法
{
	public  void mouseEntered(MouseEvent e){
 System.out.println("enter");}

 public  void mouseClicked(MouseEvent e){
	 System.out.println(" click");
	 if(e.isPopupTrigger())
 System.out.println("right click");
	 if(e.getClickCount()==2)
 System.out.println("double click");}

}

class MyMouseMotionListener extends MouseMotionAdapter
//此类继承MouseMotionAdapter,这里只实现了mouseMoved()方法
{public void mouseMoved(MouseEvent e){
 System.out.println("Moved");}
}