toJSONString() is undefined for the type JSONObject

Question

My code to create a new JSONObject and write to a file:

JSONObject obj = new JSONObject();
obj.put(\"name\", \"abcd\");
obj.put(\"age\", new Integer(100));
J         


        

Answer 1

I meet the same question, if you want to use toJSONString() you need to import json-simple-1.1.jar library.