@Test
	public void test2(){
		Map<String, String> map = new LinkedHashMap();
		map.put("1", "aaa");
		map.put("2", "bbb");
		map.put("3", "ccc");
		
		for(Map.Entry<String, String> me : map.entrySet()){
			System.out.println(me.getKey() +"="+ me.getValue());
		}
		
		for(String me : map.keySet()){
			System.out.println(me + "=" + map.get(me));
		}
		
		for(Object obj : map.entrySet()){
			Map.Entry entry3 = (Entry) obj;
			System.out.println(entry3.getKey() + "=" + entry3.getValue());
		}
	}