publicstaticvoidmain(String[]args){Mapmap=newHashMap();map.put("黄海燕","何琴秋");map.put("马跃平","麻将");map.put("杨悦","李阳");方法一：根据KeySet方法获取主键集合，然后根据主键遍历找到对应的值SetkeySet=map.keySet();//for(Stringi:keySet){//Stringvalue=map.get(i);//System.out.println(i+","+value);//}方法二：根据entrySet()方法获取map，创建set集合对象，并然后获取对应的主键和值Set>entrySet=map.entrySet();for(Map.Entryme:entrySet){Stringkey=me.getKey();字符串值=me.getValue();System.out.println(key+","+value);}
