map的输出

map的输出

　　Map<String,String> map=new HashMap<>();
　　map.put("a","a");
　　map.put("b","b");
　　map.put("c","c");
　　Set<Map.Entry<String, String>> entries = map.entrySet();
　　Iterator<Map.Entry<String, String>> iterator = entries.iterator();
　　while (iterator.hasNext()){
    Map.Entry<String, String> entry = iterator.next();
    System.out.println(entry);
　　}