map去重代码实现

代码实现

public static void main(String[] arg){
Map<String,String> map = new HashMap<>();
	map.put("11","22");
	map.put("22","22");
	map.put("33","33");
	map.put("44","44");
System.out.println("去重前" + map.toString());
Map<String,String> map1 = new HashMap(String,String);
	for(String key :map.get(key)){
		if(!map1.containsValue(map.get(key)){
			map1.put(key,map.get(key));
		}
System.out.println("去重后" + map1.toString());