Python nested classes json encoder

Json pickle will do the trick : http://jsonpickle.github.io/

## import lib
import jsonpickle

## create class
class Thing(object):
    def __init__(self, name):
        self.name = name

## create class instance
obj = Thing('Awesome')

## from obj to json string
frozen = jsonpickle.encode(obj)

## from json string to obj
thawed = jsonpickle.decode(frozen)

JSON: Online Json pretty printer

Here is a nice and simple online json pretty printer:
http://jsonprettyprint.com/

Javascripy: simple encode/decode Json LIbrary

Use the Extjs JSON library

// create new object
var myObject = new Object();
// set properties to the object
myObject["RB"] = "(aBc+ABC)";
myObject["RA"] = "(aBC+AbC)";
myObject["SA"] = "(abc+ABc)";
myObject["SB"] = "(abC+Abc)";
//from javascript object to json text:
var myJsonString = Ext.JSON.encode(myObject);


//from jsontext to javascript object
var myResponseString = '{"RB":"(aBc+ABC)","RA":"(aBC+AbC)","SA":"(abc+ABc)","SB":"(abC+Abc)"}';
var myResponseObject = Ext.JSON.decode(myResponseString);
alert(myResponseObject["RB"]) // "(aBc+ABC)"
alert(myResponseObject["RA"]) // "(aBC+AbC)"
alert(myResponseObject["SA"]) //  "(abc+ABc)"
alert(myResponseObject["SB"]) //  "(abC+Abc)"

Resources:
http://docs.sencha.com/ext-js/4-1/#!/api/Ext.JSON
http://www.sencha.com/forum/showthread.php?3333-json-encode-decode

Java: Converting Jsontext to JavaObject

Look at this great sample:


import java.util.List;
import com.google.gson.Gson;

public class Test {

    public static void main(String... args) throws Exception {
        String json = 
            "{"
                + "'title': 'Computing and Information systems',"
                + "'id' : 1,"
                + "'children' : 'true',"
                + "'groups' : [{"
                    + "'title' : 'Level one CIS',"
                    + "'id' : 2,"
                    + "'children' : 'true',"
                    + "'groups' : [{"
                        + "'title' : 'Intro To Computing and Internet',"
                        + "'id' : 3,"
                        + "'children': 'false',"
                        + "'groups':[]"
                    + "}]" 
                + "}]"
            + "}";

        // Now do the magic.
        Data data = new Gson().fromJson(json, Data.class);

        // Show it.
        System.out.println(data);
    }

}

class Data {
    private String title;
    private Long id;
    private Boolean children;
    private List<Data> groups;

    public String getTitle() { return title; }
    public Long getId() { return id; }
    public Boolean getChildren() { return children; }
    public List<Data> getGroups() { return groups; }

    public void setTitle(String title) { this.title = title; }
    public void setId(Long id) { this.id = id; }
    public void setChildren(Boolean children) { this.children = children; }
    public void setGroups(List<Data> groups) { this.groups = groups; }

    public String toString() {
        return String.format("title:%s,id:%d,children:%s,groups:%s", title, id, children, groups);
    }
}

Reference:
http://stackoverflow.com/questions/1688099/converting-json-to-java/1688182#1688182