person.java

一掌上电脑小程序

import java.awt.*; 
import java.awt.event.*;
public class Person extends Button  implements FocusListener  
{  int number;
   Color c=new Color(255,245,170);
   Person(int number,String s)
   {  super(s);
      setBackground(c);
      this.number=number;
      c=getBackground();
      addFocusListener(this);
   }
   public void focusGained(FocusEvent e)
   {  setBackground(Color.blue);
   }
   public void focusLost(FocusEvent e)
   {  setBackground(c);
   }
}