如何判断一个值在MAP中对应的VALUE中是否存在

Question

如题所述

Answer 1

public class Test {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
HashMap map = new HashMap();
map.put("key1", "value1");
map.put("key2", "value2");
map.put("key3", "value3");本回答被提问者采纳