接口回调

 

 

interface ShowMessage

{

public void showmsg(String s);

}

 

class TV implements ShowMessage

{

public void showmsg(String s)

{

System.out.println(s);

}

}

class PC implements ShowMessage

{

public void showmsg(String s)

{

System.out.println(s);

}

}

public class hello {

public static void main(String[] args) {

// TODO Auto-generated method stub

ShowMessage sm;

sm=new TV();

sm.showmsg("tv/n");

sm=new PC();

sm.showmsg("pc/n");

}

}