java遍历Map

闲来没事，练练基础，呵呵。。。，记得当初面试的时候经常有人问map怎么遍历的问题，感觉被问到的概率还是蛮高的，眼过十遍不如手过一遍啊，写一个

	public static void main(String[] args) {
		Map<Object, Object> map = new HashMap<Object, Object>();
		map.put("name","张三丰" );
		map.put("age","32" );
		map.put("address","北京.朝阳");
		
		/**
		 * 方法一
		 */
		Iterator<Entry<Object, Object>> it=map.entrySet().iterator();
		while(it.hasNext()){
			Entry<Object, Object> m= it.next();
			System.out.println(m.getKey()+":"+m.getValue());
		}
		/**
		 * 方法二
		 */
		Iterator<Object> it1 =map.keySet().iterator();
		while(it1.hasNext()){
			String key =it1.next().toString();
			String value =map.get(key).toString();
			System.out.println(key+":"+value);
		}
		/**
		 * 遍历获取map中的值
		 */
		Iterator<Object> it2 =map.values().iterator();
		while(it2.hasNext()){
			System.out.println(it2.next());
		}
	}