每天一点儿Java--抽象类和接口

package prac_1;

/**
 * <p>Title:  接口和抽象函数</p>
 * <p>Description: 演示继承抽象函数和实现接口</p>
 * <p>Copyright: Copyright (c) 2014</p>
 * <p>Filename: Play.java</p>
 * @author 王海涛
 * @version 0.1
 */
 
//接口 
interface player
{
 int flag = 1;
 void play();//播放
 void pause();//暂停
 void stop();//停止
}//end :)

//抽象类
abstract class playing
{
 public void display(Object oPara)
 {
   System.out.println(oPara);  
 }
 abstract void winRun();
}//end :)

//继承了playing抽象类和实现类player接口
public class Play extends playing implements player
{
  public void play()
  {
    display("继承了play，正在playing@_@");
  }
  public void pause()
  {
     display("继承了pause，正在pause！！！");
  }
  public void stop()
  {
    display("继承了stop ，正在stoping");
  }
  void winRun()
  {
    display("抽象类中winRun的具体实现。");
  }
  public static void main(String[] args)
  {
    Play p = new Play();
    p.play();
    p.pause();
    p.stop();
    p.winRun();
  }
}//end :)