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Getting value of inner object of json

I am a beginner in android coding. I am working on an app which gets data from php web service in JSON format, but I am not able to correctly parse it.
JSON returned looks like this:
{
"posts": [
{
"post": {
"Id": "1",
"Title": "Captain America",
"Lang": "ENG"
}
}
]
}
Android code:
JSONObject job = new JSONObject(json);//json is the string returned by web service
jObj = job.getJSONArray("posts");
JSONObject c = jObj.getJSONObject(0);
String title = c.getString("Title");
But I get a JSON exception:No value for Title
I cant figure out whats going wrong.

You have
{ //JSONObject job = new JSONObject(json); ok
"posts": [ // jObj = job.getJSONArray("posts"); ok
{ // JSONObject c = jObj.getJSONObject(0) ok
"post": { // forgot about jsonobject post // missed JSONObject post = c.getJSONObject("post")
"Id": "1",
"Title": "Captain America",
Change to
JSONObject c = jObj.getJSONObject(0);
JSONObject post = c.getJSONObject("post");
String title = post.getString("Title");

JSONObject job = new JSONObject(json);//json is the string returned by web service
JSONArray jar=job.getJSONArray("posts");
for (int i=0;i<jar.length();i++)
{
job=jar.getJSONObject(i);
job=jat.getJSONObject("post");
title=job.optString("Title");
}
You forget to get "post" value

Fetch value from JSON in android

I am sending request to the server and it gives me a response and giving data in JSON formats, now i want to fetch some specific value from that JSON format, so hot to do it.
{
"education": [
{
"school": {
"id": "2009305",
"name": "FG boys public high school Bannu Cantt "
},
"type": "High School"
},
{
"school": {
"id": "109989",
"name": "University of Engineering & Technology"
},
"type": "College"
}
],
"id": "xxxxxxx"
}
Now i need the school names from this xml,

Try this..
You response is in Json format not xml.
JSONObject json = new JSONObject(response);
JSONArray education = json.getJSONArray("education");
for(int i = 0; i < education.length(); i++){
JSONObject con_json = education.getJSONObject(i);
String school_type = con_json.getString("type");
JSONObject school_json = con_json.getJSONObject("school");
String school_name = school_json.getString("name");
}

It is not XML. it is completely in Json Standard format.
first build a JSONobject from your data:
JSONObject jsonObj = new JSONObject(result); //result = your Data String in fetched from server
then you cab retrieve what you want using its key. for example:
jsonObj.getString("id"); // it returns "xxxxxxx". as is in your data

Recieving json array and saving in variables. Android

So I am receiving a JSON array in an httpresponse. The array consists of the following objects/variables.
{"sessid":"vxkEXkMBUmBByESRlvaxrxSaFTfhDqd8","session_name":"SESS88cdfb2f1c420898","user":{"uid":"60","name":"abc","theme":"","signature":"","signature_format":"filtered_html","created":"13082976","access":"1386287","login":1386211,"status":"1","timezone":null,"language":"","picture":null,"data":{"mimemail_textonly":0},"roles":{"2":"authenticated user","5":"centre user"},"field_centre_reference":{"und":[{"nid":"256"}]},"field_first_name":{"und":[{"value":"web","format":null,"safe_value":"web"}]},"field_surname":{"und":[{"value":"services","format":null,"safe_value":"services"}]},"bounce_mail_blocked":false,"force_password_change":"0"}}
Now I want to receive all these objects/strings in separate variables. Like i want to store the "sessid" in a variable String session_id. And so on. I can get the first two (i.e. sessid and session_name) in a simple way with the help of the following code.
response = client.execute(httppost);
BasicResponseHandler handler = new BasicResponseHandler();
String data = handler.handleResponse(response);
jObj = new JSONObject(data);
sessid = jObj.getString("sessid");
Log.d("sessid obj", sessid);
session_name = jObj.getString("session_name");
Log.d("session_name", session_name);
But since I am a noob at Android, I don't know how to get the rest of the data to be saved in variables. The upcoming data cannot be saved in a simple way.

Try with this:
JSONObject j_user = jObj.getJSONObject("user");
String uid = j_user.getString("uid");
...
//And so on with the rest of the fields

{ // json object node
"sessid": "vxkEXkMBUmBByESRlvaxrxSaFTfhDqd8",
"session_name": "SESS88cdfb2f1c420898",
"user": { // json object user
"uid": "60", // string
"name": "abc",
"theme": "",
"signature": "",
"signature_format": "filtered_html",
"created": "13082976",
"access": "1386287",
"login": 1386211,
"status": "1",
"timezone": null,
"language": "",
"picture": null,
"data": { // json object data
"mimemail_textonly": 0 //string
},
....// rest of the json
{ represents json object node
[ represents json array node
To parse
JSONObject jObj = new JSONObject(load());
String sessid = jObj.getString("sessid");
Log.d("sessid obj", sessid);
JSONObject user = jObj.getJSONObject("user");
String uid = user.getString("uid");
Log.d("sessid obj", uid);
To parse data
"data": {
"mimemail_textonly": 0
},
JSONObject data= user.getJSONObject("data");
Log.i(".......",""+data.getString("mimemail_textonly"));
To parser field_centre_reference
"field_centre_reference": { // json object field_centre_reference
"und": [ // json array und
{ // json object node
"nid": "256" //string
}
]
},
JSONObject field= user.getJSONObject("field_centre_reference");
JSONArray jr = field.getJSONArray("und");
JSONObject jb1 = (JSONObject) jr.get(0);
Log.i(".......",""+jb1.getString("nid"));

Check out JacksonParser library, it provides annotations which make your work so easy. And it is one of fastest parsing libraries... You can have it here
Edit:
As an example you can take a look at one of my previous question JacksonParser databind and core cause "Found duplicate file for APK"?

You should notice that the JSON you received is a nested JSON. It is like a Map that one of the value of Map is also a Map.
In your case, there is a JSONObject contains sessid and session_name while is only string, but the "user" is also a JSONObject, so you can parse it level by level.
For more details, you can read http://www.vogella.com/articles/AndroidJSON/article.html

Try this..
Getting
"user": {
"uid": "60",
JSONObject obj_user = jObj.getJSONObject("user");
String uid = obj_user.getString("uid");
"user": {
"uid": "60",
"data": {
"mimemail_textonly": 0
}
JSONObject obj_data = jObj.getJSONObject("data");
String mimemail_textonly = obj_user.getString("mimemail_textonly");
JSONObject obj_roles = jObj.getJSONObject("roles");
String two = obj_roles.getString("2");
"field_centre_reference": {
"und": [
{
"nid": "256"
JSONObject obj_field_centre_reference = jObj.getJSONObject("field_centre_reference");
JSONArray ary_und = obj_field_centre_reference.getJSONArray("und");
JSONObject objve = ary_und.getJSONObject(0);
String nid= objve.getString("nid");

Android: cannot convert to JSONArray from multidimensional MongoDB jsonObject

im trying to get data from the site which have mongodb as their database and CI ,i make simple script to make json encode output from the site and the output is like :
{
"mko680": {
"_id": {
"$id": "515be1807bfb8b1d0d000000"
},
"channel": [
"channel a",
"subchannel a"
],
"channel_id": 227,
"id": "mko680",
},
"mkv002": {
"_id": {
"$id": "515b32407bfb8b1d0d000000"
},
"channel": [
"channel a",
"subchannel b"
],
"channel_id": 232,
"id": "mkv002",
}
}
i try to parse that output in my android project like this
JSONArray obj = new JSONArray(outputlike o);
for (int i = 0; i < obj.length(); i++) {
JSONObject json_data = obj.getJSONObject(i);
Log.i("test",json_data.getString("channel_id"));
}
the logcat said org.JSON.Mismatch
any clue for which is json/my code that not right ?
thanks , and sory for my bad question hope you understand
UPDATED :
now i change it to json object like :
JSONObject arr = new JSONObject(bufstring);
for (int i = 0; i < arr.length(); i++) {
Log.i("test",arr.getString("channel_id"));
}
but the logcat now said , no value for channel_id, but it sure there is channel_id in that output, any clue ?

The data you receive is of the type JSONObject and not JSONArray. Therefore, you need to parse your json data like this:-
String jsonStr = "..."; //Your JSONString
JSONObject obj = new JSONObject(jsonStr);
JSONObject mkObj = obj.getJSONObject("mko680");
String channelId = mkObj.getString("channel_id");

Your return data is Jsonobject not an JsonArray.
So, you can create JsonObject,
JSONObject obj = new JSONObject(outputlike o);

thank all based on your answer i have figured it out, at first i got difficult to get dynamic key for getting the right object i use below code to solved it, dont think its the good one but i use this in temporary
JSONObject arr = new JSONObject(bufstring);
Iterator keys = arr.keys();
while(keys.hasNext()) {
String ambilKey = (String)keys.next();
JSONObject AmbilObject = arr.getJSONObject(ambilKey);
Log.i("test",AmbilObject.toString());
}
thanks for all suggestion, you're rock :D

Android - json parsing

I have a JSON as shown below:
{
"places": [{
"name": "Ankola",
"slug": "ankola",
"category": "beach",
"distance": "521",
"travel_time": "8 hrs, 2 mins",
"days": "3",
"latitude": "14.669456",
"longitude": "74.300952",
"weather": "Summer 21\u00b0-36\u00b0C, Winter 12\u00b0-35\u00b0C",
"todo": "Baskal gudda, Nadibag, Shedikuli, Keni, Belekeri",
"about": "Ankola is a small town surrounded by numerous temples. It is in line with Arabian sea. Ankola is famous for its native breed of mango called ishaad and for cashews harvesting.",
"image": [
"Cm5NXlq.jpg",
"9OrlQ9C.jpg",
"DRWZakh.jpg",
"dFKVgXA.jpg",
"5WO2nDf.jpg"
]
}]
}
I know how to fetch key - value pairs, but i dont know how to parse array inside json to form a string array(image - in my case)
To summarize i want something like this:
I have 5 image names under "image" tag, i want them in a string array. How can i do this?

Use :
JSONArray images = yourJSONObject.getJSONArray("image");
for(int i = 0; i < images.length(); i++){
String image = images.getString(i);
}
This should do the trick as I remember.

Here you go:
JSONArray ja = whatEverYourJsonObject.getJSONArray("image");
for(int i=0; i<ja.length(); j++){
String name = ja.getString(i);
}

You first have to convert the JSON string to a Java object (JSONObject). Then, you obtain your JSONArray and iterate over it.
Example:
JSONObject jsonObj = null;
try {
jsonObj = new JSONObject (jsonString);
JSONArray images = itemObj.getJSONArray ("images");
int length = images.length ();
for (int i = 0; i < length; i++)
Log.d ("Image Filename", images.getString (i));
} catch (JSONException e) {
e.printStackTrace();
}
EDIT: Now I see that your JSON is invalid - you have an object for each image and that object contains only the value part of the data. An example of a valid images array would be as follows:
{
"image": [
"Cm5NXlq.jpg",
"9OrlQ9C.jpg",
"DRWZakh.jpg",
"dFKVgXA.jpg",
"5WO2nDf.jpg"
]
}

I would suggest:
Create your own class which describes your data structure defined
by those json object. As a last resort you can even generate Java
class based on JSON string - look at
jsongen
When you will have your own Java class (let's say MyClass) you can easily parse JSON to your generated Java class using GSON, like:
MyClass myClass = gson.fromJson(jsonString, MyClass.class);