我怎么能结合两个哈希图<String, Integer>到一个 HashMap <HashMap<String, String> , 整数&gt;?

Question

HashMap<String1, Integer1> 和 HashMap<String2, Integer2> 到 HashMap<HashMap<String1,String2> , Integer1+Integer2>

Answer 1

see hashmap contains Map(Key, Value) so if you want to merge the hashmap then you are changing the key. so if you want to add multiple keys then you can do it with

Map<Map.Entry<String,String>, Integer> map = new HashMap<>();

map.put(Map.entry("onekey", "2nd Keys"), 0);