import java.util.*;

public class Muster{
    public static void main(String args[]){
        Collection<String> list = new ArrayList<String>();
        list.add("《Java从入门到精通》");
        list.add("《零基础学Java》");
        list.add("《Java精彩编程200例》");
        Iterator<String> it = list.iterator();
        while(it.hasNext()){
            String str = it.next();
            System.out.println(str);
        }
    }
}