BE THE CODER > JSON > JSON LIB Examples > Collection to JSON Array

JSON-lib is a java library for serializing and de-serializing java beans, maps, arrays and collections in JSON format. Get the latest binaries from sourceforge http://json-lib.sourceforge.net/. This requires the libraries ( json-lib-2.4-jdk15.jar, xom-1.2.7.jar, ezmorph.jar commons-lang.jar, commons-collections.jar, commons-beanutils-1.7.jar and commons-logging-1.1.1.jar) to be in classpath. The following example shows converting a Collection to JSON Array.

File Name :	com/bethecoder/tutorials/json_lib/tests/Collection2JsonArray.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.json_lib.tests;



import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;



import net.sf.json.JSONArray;

import net.sf.json.JSONSerializer;



public class Collection2JsonArray {



  /**

   * @param args

   */

  public static void main(String[] args) {

    List<String> strs = Arrays.asList("one", "two", "three", "four");

    JSONArray jsonArray = (JSONArray) JSONSerializer.toJSON(strs);

    System.out.println(jsonArray.toString(2)); //pretty print with indent

    

    List<Object> genList = new ArrayList<Object>();

    genList.add("one");

    genList.add(new Integer(2));

    genList.add(new Long(3));

    genList.add(new Double(4.26));

    genList.add(true);

    genList.add(new char [] { 'A', 'B', 'C' });

    

    jsonArray = (JSONArray) JSONSerializer.toJSON(genList);

    System.out.println(jsonArray.toString(2)); //pretty print with indent

  }



}