mouseeventdemo.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter14;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MouseEventDemo extends MouseMotionAdapter
{
	JFrame frmMain;
	int intX,intY;
	JPanel pnlMain;
	JLabel lblX,lblY;
	JTextField txtX,txtY;
	GridLayout glMain;
	public MouseEventDemo()
	{
		frmMain=new JFrame("鼠标事件演示");
		pnlMain=new JPanel();
		frmMain.getContentPane().add(pnlMain);
		glMain=new GridLayout(2,2);
		pnlMain.setLayout(glMain);
		lblX=new JLabel("当前鼠标X坐标:");
		lblY=new JLabel("当前鼠标Y坐标:");
		txtX=new JTextField(5);
		txtY=new JTextField(5);
		pnlMain.add(lblX);
		pnlMain.add(txtX);
		pnlMain.add(lblY);
		pnlMain.add(txtY);
		//定义、绑定鼠标事件监听器对象
		frmMain.addMouseMotionListener(this);
	 	frmMain.setSize(250,150);
	 	frmMain.setVisible(true);
	 }
	 //重写MouseMotionActionlistener接口中指定方法
    public void mouseMoved(MouseEvent me)
 	{
 		intX=me.getX();
 		intY=me.getY();
 		txtX.setText(String.valueOf(intX));
 		txtY.setText(String.valueOf(intY));
 	}
	public static void main(String args[])
	{
	 	MouseEventDemo med=new MouseEventDemo();
	}
}