testinner.java

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

public class TestInner {

	Frame f = new Frame ("内部类测试");
	TextField tf = new TextField (30);
	public TestInner (){
		f.add (new Label ("请按下鼠标左键并拖动"),"North");
		f.add (tf,"South");
		InnerMonitor im = this.new InnerMonitor ();
		f.addMouseMotionListener (im);
		f.addMouseListener (im);
		f.setBackground (new Color (122,234,45));
		f.setSize (300,300);
		f.setVisible (true);
	}

	public static void main (String [] args){
		TestInner t = new TestInner ();
	}
	
	private class InnerMonitor implements MouseMotionListener,MouseListener {
		public void mouseDragged (MouseEvent e){
			String s = "鼠标拖动到 (" + e.getX() + "," + e.getY () + ")";
			tf .setText (s);
		}
		pubilc void mouseEntered (MouseEvent e ){
			String s = "鼠标已经进入";
			tf.setText (s);
		}
		public void mouseExited (MouseEvent e){
			String s = "鼠标已经移出窗体";
			tf.setText (s);
		}
		public void mouseMoved (MouseEvent e) {}
		public void mousePressed (MouseEvent e) {}

		public void mouseClicked (MouseEvent e) {}

		public void mouseReleased (MouseEvent e) {}
	}
}