AWT MouseListener && MouseMotionListener ，TextField

package guiawt;

import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

public  class MouseListener1 implements MouseMotionListener,MouseListener
{
	private Frame frame;
	private Button button;
	private TextField textField;
	
	public void mouseClicked(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mousePressed(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mouseReleased(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mouseEntered(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mouseExited(MouseEvent e)
	{
		String str = "mouse leave";
		this.textField.setText(str);
		
	}

	public void mouseDragged(MouseEvent e)
	{
		String str = "x : " + e.getX() + " y : " + e.getY();
		this.textField.setText(str);
	}

	public void mouseMoved(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void go()
	{
		frame = new Frame("two listeners exm");
		
		frame.add(new Label("click"),BorderLayout.NORTH);
		
		textField = new TextField(30);
	
		frame.add(textField,BorderLayout.SOUTH);
		
		frame.addMouseMotionListener(this);
		frame.addMouseListener(this);
		
		frame.addMouseListener(new MyMouseListener());
		
		frame.setSize(500,500);
		frame.setVisible(true);
	}
	
	
	
	public static void main(String[] args)
	{
		MouseListener1 mm = new MouseListener1();
		
		mm.go();
	}
	
	
	
}





class MyMouseListener implements MouseListener
{

	public void mouseClicked(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mousePressed(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mouseReleased(MouseEvent e)
	{
		// TODO Auto-generated method stub
		
	}

	public void mouseEntered(MouseEvent e)
	{
		String str = "mouse enter";
		System.out.println(str);
		
	}

	public void mouseExited(MouseEvent e)
	{
		// TODO Auto-generated method stub
		String str = "mouse leave";
		System.out.println(str);
	}
	
}