Java JSONObject

/**
 * @author lautturi.com 
 * Java example: Java create a JSONObject
 */

import java.util.*;

import org.json.JSONObject;

public class Lautturi {

	public static void main(String[] args) {

		JSONObject obj = new JSONObject();
		obj.put("name", "lautturi");
		obj.put("num", new Integer(100));
		obj.put("balance", new Double(1000.21));
		System.out.print(obj);
	}
}

output:

{"balance":1000.21,"num":100,"name":"lautturi"}