java遍历arrayList的四种方法

转载自：http://blog.sina.com.cn/s/blog_15314b5550102w5vu.html

java遍历arrayList的四种方法

package com.test;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

public class ArrayListDemo {

    public static void main(String args[]){

        List list = new ArrayList();

        list.add("luojiahui");

        list.add("luojiafeng");

        //方法1

        Iterator it1 = list.iterator();

        while(it1.hasNext()){

            System.out.println(it1.next());

        }

        //方法2

        for(Iterator it2 = list.iterator();it2.hasNext();){

             System.out.println(it2.next());

        }

        //方法3

        for(String tmp:list){

            System.out.println(tmp);

        }

        //方法4

        for(int i = 0;i < list.size(); i ){

            System.out.println(list.get(i));

        }

    }

}