java遍历HashMap简单办法

import java.util.HashMap;import java.util.Iterator;import java.util.Set;public class HashSetTest { public static void main(String[] args) { HashMap map = new HashMap(); map.put("a", "aa"); map.put("b", "bb"); map.put("c", "cc"); map.put("d", "dd"); map.put("e", "ee"); Set set = map.keySet(); for(Iterator itr=set.iterator();itr.hasNext();){ String value =(String) itr.next(); String key = (String)map.get(value); System.out.println(value+"="+key); } }}