Increment 

JSON (JavaScript Object Notation) is a lightweight text-based open standard designed for human-readable data interchange. Douglas Crockford has provided a reference implementation of JSON in Java at http://json.org/ useful for JSON serialization and deserialization. Click here to download the compiled library. The following example shows incrementing the number properties of a JSONObject using increment method.

File Name  :   com/bethecoder/tutorials/json_java/tests/Increment.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.json_java.tests; import org.json.JSONException; import org.json.JSONObject; public class Increment {   /**    * @param args    * @throws JSONException     */   public static void main(String[] args) throws JSONException {     JSONObject obj = new JSONObject();     obj.put("year", 2010);     System.out.println(obj.toString(2));          obj.increment("year").increment("age");     System.out.println(obj.toString(2));          obj.increment("year").increment("age");     System.out.println(obj.toString(2));          obj.increment("year").increment("age");     System.out.println(obj.toString(2));   } }

{"year": 2010}

{
  "age": 1,
  "year": 2011
}

{
  "age": 2,
  "year": 2012
}

{
  "age": 3,
  "year": 2013
}