mouseeventtest.java

《Java程序设计与应用》-张仕斌-源程序 《Java程序设计与应用》-张仕斌-源程序

//MouseEventTest.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

//以下类实现了MouseListener和MouseMotionListener接口
public class MouseEventTest extends JFrame implements	
	MouseListener,MouseMotionListener {
	private JLabel prompt = null;
	
	public MouseEventTest() {
		super("MouseEvent Test");
		
		prompt = new JLabel();
		this.getContentPane().setLayout(new FlowLayout());
		this.getContentPane().add(prompt);
		
		this.addMouseListener(this);       //添加鼠标监听
		this.addMouseMotionListener(this); //添加鼠标移动监听
	}
	
	public void mouseClicked(MouseEvent e) { //鼠标单击
		String s = null;
		s = "鼠标单击,在[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public void mouseEntered(MouseEvent e) { //鼠标进入
		String s = null;
		s = "鼠标进入窗体,在[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public void mouseExited(MouseEvent e) {  //鼠标移出
		prompt.setText("鼠标移出");
	}
	
	public void mousePressed(MouseEvent e) { //鼠标键按下
		String s = null;
		s = "鼠标键按下,在[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public void mouseReleased(MouseEvent e) { //鼠标键松开
		String s = null;
		s = "鼠标键放开,在[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public void mouseDragged(MouseEvent e) {  //鼠标拖动
		String s = null;
		s = "鼠标拖动,当前位置[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public void mouseMoved(MouseEvent e) { //鼠标移动
		String s = null;
		s = "鼠标移动,到[" + e.getX() + "," + e.getY() + "]";
		prompt.setText(s);
	}
	
	public static void main(String[]args) {
		MouseEventTest met = new MouseEventTest();
		met.setSize(400,100);
		met.setDefaultCloseOperation(EXIT_ON_CLOSE);
		met.setVisible(true);
	}
}