package com.example;

import java.util.*;

public class TestIterator {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Collection books = new HashSet();

books.add("J2EE企业应用实战");

books.add("Struts2权威指南");

books.add("Thinking in Java");

//foreach读取

for(Object obj:books)

{

String book =obj.toString();

System.out.println(book);

}

Iterator it =books.iterator();

while(it.hasNext())

{

String book =it.next().toString();

System.out.println(book);

if (book.equals("Struts2权威指南"))

{

it.remove();

}

book="测试";

}

System.out.println(books);

}

}