Map迭代器两种遍历方式

标签：java   map   集合   迭代器   遍历   

*/

import java.util.*;
class  Demo
{
	public static void main(String[] args) 
	{
		HashMap<String,String>  map = new HashMap<String,String>();
		map.put("001","zhangsan");
		map.put("002","xuzhong");
		map.put("003","lisi");



         //使用 entrySet()遍历集合
		 Set<Map.Entry<String,String>> entry = map.entrySet();
		 Iterator<Map.Entry<String,String>>  ite = entry.iterator();
		 while(ite.hasNext())
		 {
		     Map.Entry<String,String> en = ite.next();
			 String key = en.getKey();
			 String value = en.getValue();
			 sop(key+"=="+value);
		 }



		//使用keySet()遍历
		/*
		Set<String> keys = map.keySet();
		Iterator<String> ite = keys.iterator();
		while(ite.hasNext())
		{
			String key = ite.next();
            String value = map.get(key);
			sop(key+"=="+value);
		}

        */

	}

	public static void sop(Object obj)
	{
		System.out.println(obj);
	}
}

Map迭代器两种遍历方式

标签：java   map   集合   迭代器   遍历   

原文地址：http://blog.csdn.net/u011007829/article/details/43234157