javascript - Return anonymous object in java -

in javascript can do:

function foo() {    ...      return {         attr1 : ... ,         attr2 : ...,        }; } 

but equivalent in java?

because want return custom json object controller after ajax call , want create new bean.

as java dictates, should create new class , convert json. also, can use map<string,object> accomplish same thing. generate following json:

{     "attr1":1,     "attr2":2 } 

you can use following code:

 map<string,object> map = new hashmap<>(3);  map.put("attr1", 1);  map.put("attr2", 2); 

and convert json.

p.s.: hashmap in java causes heap increase , unnecessary garbage, specified enough size keep 2 elements.