Map集合的遍历

package com.emolay.test; import java.util.HashMap;import java.util.Map; public class Test {    public static void main(String[] args) {         Map
      
        maps = new HashMap
       
        ();         maps.put("zhangsan", "北京人");        maps.put("wangwu", "上海人");         Test t = new Test();        t.addItem(maps);         for (String key : maps.keySet()) {            String value = maps.get(key);            System.out.println(value);        }     }     public void addItem(Map
        
          maps) {        maps.put("zhangsan", "广州人");    }}
        
       
      

输出结果：

上海人

广州人