abstract class Contents{abstract public int value();}
interface Destination{String readLabel();}
public class Parcel3{
private class PContents extends Contents{
private int i;
PContents(int cn){i=cn;}
public int value(){return i;}
}
protected class PDestination implements Destination{
private String label;
private PDestination(String whereTo){label=whereTo;}
public String readLabel(){return label;}
}
public Destination dest(String s){return new PDestination(s);}//
public Contents cont(int cn){return new PContents(cn);}//
}
class pl3{
public static void main(String args[]){
Parcel3 p=new Parcel3();
Contents c=p.cont(100);
//
Destination d=p.dest("Tanzania"); // 请问这里是什么意思 啊!!!
System.out.println(c.value());
System.out.println(d.readLabel());
}
}
麻烦帮忙解析下这个程序.特别是带//后面的 !!!!!!!
