新手问题，请前辈们多多帮忙，谢谢
我刚写了个关于鼠标的东西，不过编译是出现问题，提示是：
Note:MultiListener.java   uses   or   overrides   a   deprecated   API.
Note:Recompile   with   -deprecation   for   details.
各位前辈，这个问题应该如何解决啊？谢谢！代码是：

import   java.awt.*;
import   java.awt.event.*;
public   class   MultiListener   implements   MouseListener,MouseMotionListener,WindowListener
{
private   Frame   f;
private   TextField   tf;
public   static   void   main(String[]   args)
{
MultiListener   m1   =   new   MultiListener();
m1.go();
}
public   void   go()
{
Frame   f   =   new   Frame( "多个监听者 ");
f.add(new   Label( "鼠标问题 "), "Nouth ");
tf   =   new   TextField(30);
f.add(tf, "South ");
f.addMouseListener(this);
f.addMouseMotionListener(this);
f.addWindowListener(this);
f.resize(200,200);
f.show();
}
public   void   mouseDragged(MouseEvent   e)
{
String   s   = "现在坐标：   x   = "   +   e.getX()   +   "\ty   =   "   +   e.getY();
tf.setText(s);
}
public   void   mouseMoved(MouseEvent   e){}
public   void   mouseEntered(MouseEvent   e)
{
String   s   =   "鼠标进入 ";
tf.setText(s);
}
public   void   mouseExited(MouseEvent   e)
{
String   s   =   "鼠标消失 ";
tf.setText(s);
}
public   void   mouseClicked(MouseEvent   e){}
public   void   mousePressed(MouseEvent   e){}
public   void   mouseReleased(MouseEvent   e){}
public   void   windowClosing(WindowEvent   e)
{
System.exit(0);
}
public   void   windowClosed(WindowEvent   e){}
public   void   windowOpened(WindowEvent   e){}
public   void   windowIconified(WindowEvent   e){}
public   void   windowDeiconified(WindowEvent   e){}
public   void   windowDeactivated(WindowEvent   e){}
public   void   windowActivated(WindowEvent   e){}
}

------解决方案--------------------
f.resize(200,200);
||
\/
f.setSize(200,200);

f.show();
||
\/
f.setVisible(true);

分别是第21,22行