yes you can use jacson to parse it but there is more easy way to do it
its Jsonme lib "import org.json.me" you dont have to add jar file to use it
JSONObject obj = new JSONObject("{'var1':'val1','var2':200});
String var1=obj.getString("var1");
int var2=obj.getInt("var2");
yes its more easy but if your project is complex i advice you to use jacson lib