for (Map.Entry<Long, Integer> me : zlSendMap.entrySet())

public static void main(String[] args) throws IOException {
Map<String,String> map = new HashMap<String,String>();
map.put("a""aasdf");
map.put("3""fffff");
map.put("2""jljlj");
for(Entry<String, String> e : map.entrySet()){
System.out.println("key: "+ e.getKey()+" hashCode: "+ e.getKey().hashCode());
}
}
  
输出:
key: 3 hashCode: 51
key: 2 hashCode: 50
key: a hashCode: 97

 

原文地址:https://www.cnblogs.com/beautiful-code/p/5793724.html