mouevent3.java

GUI事件处理例子

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

public class MouEvent3 extends Frame {

	static MouEvent3 frm = new MouEvent3();
	static TextArea txa;
	static TextField txt1, txt2;

	public static void main(String args[]) {
		frm.setTitle("MouEvent");
		frm.setSize(240, 200);
		frm.setLayout(new FlowLayout());
		txa = new TextArea(5, 30);
		txt1 = new TextField(30);
		txt2 = new TextField(30);
		txa.setEditable(false);
		txa.addMouseMotionListener(new MouMotionAdapter());
		frm.add(txa);
		frm.add(txt1);
		frm.add(txt2);
		frm.setVisible(true);
	}

	static class MouMotionAdapter extends MouseMotionAdapter {
		public void mouseMoved(MouseEvent e) //处理鼠标移动事件
		{
			txt1.setText("Mouse is moved in txa");
		}

		public void mouseDragged(MouseEvent e) //处理鼠标拖动事件
		{
			txt2.setText("Mouse is dragged in txa");
		}
	}
}