遍歷map集合的其中兩種方式

Map<String, Object> map = new HashMap<String, Object>();
System.out.println("---------增強for遍歷map---------");
		for (Map.Entry<String, Object> entry : map.entrySet()) {
			System.out.println(entry.getKey() + "---" + entry.getValue());
		}
		System.out.println("---------增強for遍歷map---------");
		
		System.out.println("---------迭代器遍歷map---------");
		 Set<Entry<String,Object>> entrySet = map.entrySet();
		 Iterator<Map.Entry<String, Object>> iterator = entrySet.iterator();
		 
		 while (iterator.hasNext()) {
			 Entry<String, Object> entry = (Entry<String, Object>) iterator.next();
			 System.out.println(entry.getKey() + "---" + entry.getValue());
		}
		 
		System.out.println("---------迭代器遍歷map---------");