mouevent.java

GUI事件处理例子

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

public class MouEvent extends Frame implements MouseListener {
	static MouEvent frm = new MouEvent();
	static TextArea txa1, txa2;

	public static void main(String args[]) {
		frm.setTitle("MouEvent");
		frm.setSize(240, 300);
		frm.setLayout(new FlowLayout());
		txa1 = new TextArea(5, 30);
		txa2 = new TextArea(8, 30);
		txa2.setEditable(false);
		txa1.addMouseListener(frm);
		frm.add(txa1);
		frm.add(txa2);
		frm.setVisible(true);
	}

	public void mouseEntered(MouseEvent e) //鼠标进入事件处理
	{
		txa2.setText("Mouse enters txa1\n");
	}
	public void mouseClicked(MouseEvent e) //鼠标单击事件处理
	{
		txa2.append("Mouse is clisked at[" + e.getX() + "," + e.getY() + "]\n");
	}
	public void mousePressed(MouseEvent e) //鼠标按键事件处理
	{
		txa2.append("Mouse is pressed at [" + e.getX() + "," + e.getY()	+ "]\n");
	}
	public void mouseReleased(MouseEvent e) //鼠标键释放事件处理
	{
		txa2.append("Mouse is released at [" + e.getX() + "," + e.getY()+ "]\n");
	}
	public void mouseExited(MouseEvent e) //鼠标离开事件处理
	{
		txa2.append("Mouse exits from txa1 ");
	}
}