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 JSON > JSON LIB > Collection to JSON Array

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 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  :  
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 = (JSONArrayJSONSerializer.toJSON(strs);
    System.out.println(jsonArray.toString(2))//pretty print with indent
    List<Object> genList = new ArrayList<Object>();
    genList.add(new Integer(2));
    genList.add(new Long(3));
    genList.add(new Double(4.26));
    genList.add(new char [] { 'A''B''C' });
    jsonArray = (JSONArrayJSONSerializer.toJSON(genList);
    System.out.println(jsonArray.toString(2))//pretty print with indent


It gives the following output,



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