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org.json.JSONObject creating JSONObject from string threw java.lang.RuntimeException

I've been trying to figure out why constructing a org.json.JSONObject from a string json would not work for very long.
Here is the json string (pretty)
{
"status": 200,
"message": "200 Request is valid",
"job": {
"Id": 1,
"Jobtitle": "Test Job",
"Description": "Asthma",
"Medicalcondition": "Asthma",
"Language": "English",
"Racereligion": "Chinese",
"Agegender": "50, Female",
"Hourlyprice": 42,
"Type": "caregiver",
"Date": "2019-05-12T00:00:00+08:00",
"Starttime": "2018-07-20T12:15:00+08:00",
"Endtime": "2018-07-20T18:15:00+08:00",
"Address": "1 Cluny Road",
"Latitude": 1.3152057,
"Longitude": 103.8162553,
"Creator": "xiurobert"
}
}
and minified (the one that I'm attempting to construct a JSONObject from)
String json = "{\"status\":200,\"message\":\"200 Request is valid\",\"job\":{\"Id\":1,\"Jobtitle\":\"Test Job\",\"Description\":\"Asthma\",\"Medicalcondition\":\"Asthma\",\"Language\":\"English\",\"Racereligion\":\"Chinese\",\"Agegender\":\"50, Female\",\"Hourlyprice\":42,\"Type\":\"caregiver\",\"Date\":\"2019-05-12T00:00:00+08:00\",\"Starttime\":\"2018-07-20T12:15:00+08:00\",\"Endtime\":\"2018-07-20T18:15:00+08:00\",\"Address\":\"1 Cluny Road\",\"Latitude\":1.3152057,\"Longitude\":103.8162553,\"Creator\":\"xiurobert\"}}";
Constructor
JSONObject jsonObject = new JSONObject(json)
However, this resulted in a java.lang.RuntimeException: Cannot evaluate org.json.JSONObject.toString()
I've even tried using gson to parse the string first and then output it back to the new JSONObject but it seems like it didn't work.
Any reasons why?

This is working perfectly
String json = "{\"status\":200,\"message\":\"200 Request is valid\",\"job\":{\"Id\":1,\"Jobtitle\":\"Test Job\",\"Description\":\"Asthma\",\"Medicalcondition\":\"Asthma\",\"Language\":\"English\",\"Racereligion\":\"Chinese\",\"Agegender\":\"50, Female\",\"Hourlyprice\":42,\"Type\":\"caregiver\",\"Date\":\"2019-05-12T00:00:00+08:00\",\"Starttime\":\"2018-07-20T12:15:00+08:00\",\"Endtime\":\"2018-07-20T18:15:00+08:00\",\"Address\":\"1 Cluny Road\",\"Latitude\":1.3152057,\"Longitude\":103.8162553,\"Creator\":\"xiurobert\"}}";
try
{
JSONObject jsonObject = new JSONObject(json);
Log.i("TAG", "a: "+jsonObject.toString());
} catch (JSONException e)
{
e.printStackTrace();
}
where are you getting error

In my case i have used org.json.JSONObject and org.json.JSONArray. Then i changed the imports to org.json.simple.JSONObject and org.json.simple.JSONArray and my code worked without any issues.

should value must be quoted in JSON along with key

i have data
like this:
{
"status": "success",
"message": "Student Statement Report",
"data": {
"data": [{
"id": "45",
"transaction_no": "45",
"transaction_date": "2017-05-25",
"transaction_type": "invoice",
"transaction_amount": "1010.00",
"related_invoice_id": "45",
"balance_amount": "1010.00",
"related_user_id": "436",
"related_user_group": "student",
"description": "",
"created_by": "Principal",
"updated_by": "Principal",
"created_at": "2017-05-25 11:57:39",
"updated_at": "2017-05-25 11:57:39"
}],
"opening_balance": 0,
"dates": ["2017-05-22 00:00:00", "2017-05-28 23:59:59"]
}
}
JSONObject jsonObject = new JSONObject(response);
and i am geeting Json expection error from here
String openingBalance = jsonObject.getString("opening_balance");
"opening_balance": 0,
so, my biggest question is should that zero (value) should be quoted or not?

You have to parse it like this:
JSONObject jsonObject = new JSONObject(response);
JSONObject data = jsonObject.getJSONObject("data");//Get Data object
int openingBalance = data.getInt("opening_balance");//Get opening balance

If you read the number as an Integer then quotation is not necessary. But if your read it as a String then you have to put quotation.
To read as an Integer you can use getInt("json_key")
& for String getString("json_key").

JSONObject jsonObject = new JSONObject(response);
JSONObject data = jsonObject.getJSONObject("data");//Get Data object
int openingBalance = data.getInt("opening_balance");//Get opening balance

How to parse JSON with another json inside in java?

This is my JSON:
{
"results": [
{
"username": "bigglesworth",
"phone": "650-253-0000",
"createdAt": "2011-11-07T20:58:06.445Z",
"updatedAt": "2011-11-07T20:58:06.445Z",
"objectId": "3KmCvT7Zsb"
},
{
"username": "cooldude6",
"phone": "415-369-6201",
"createdAt": "2011-11-07T20:58:34.448Z",
"updatedAt": "2011-11-07T21:25:10.623Z",
"objectId": "g7y9tkhB7O"
}
]
}
How can I parse this json?
When I tried to parse this using jason I retrived this error message
"Exception in thread "main"
com.fasterxml.jackson.databind.JsonMappingException: Can not
deserialize instance of java.util.ArrayList out of START_OBJECT
token"

Without third party libraries, you can do something like
JSONObject jsonObject = new JSONObject(jsonAsString);
JSONArray results = jsonObject.getJSONArray("results");
for(int i=0; i<results.length(); i++) {
JSONObject result = results.getJSONObject(i);
String username = result.getString("username");
//...
}

Cannot parse JSONArray using GSON

I have encountered a problem whilst developing my Android application. My problem is that I don't know how to parse JSON code from an URL using GSON. I searched Google and SO for about an hour or so, but nothing worked for me. Everything I found on the internet referred to custom JSON code, not code from an URL. Here is a small sample of the data I have.
{
"status": {
"error": "NO",
"code": 200,
"description": "none",
"message": "Request ok"
},
"geoLocation": {
"city_id": "147",
"city_long": "Saint-Laurent",
"region_short": "QC",
"region_long": "Quebec",
"country_long": "Canada",
"country_id": "43",
"region_id": "35"
},
"stations": [
{
"country": "Canada",
"price": "3.65",
"address": "3885, Boulevard Saint-Rose",
"diesel": "0",
"id": "33862",
"lat": "45.492367",
"lng": "-73.710915",
"station": "Shell",
"region": "Quebec",
"city": "Saint-Laurent",
"date": "3 hours agp",
"distance": "1.9km"
},
{
"country": "Canada",
"price": "3.67",
"address": "3885, Saint-Mary",
"diesel": "0",
"id": "33872",
"lat": "45.492907",
"lng": "-73.740715",
"station": "Shell",
"region": "Quebec",
"city": "Saint-Laurent",
"date": "3 hours agp",
"distance": "2.0km"
}
]
}
I am a beginner at JSON/GSON so I need a bit of help. Here is what I have:
try {
String sURL = "http://api.mygasfeed.com/stations/radius/(39.631439)/(-80.8005451)/(25)/reg/(price)/uc82wk25m0.json?callback=?";
URL url = new URL(sURL);
HttpURLConnection request = (HttpURLConnection) url.openConnection();
request.connect();
// Convert to a JSON object to print data
JsonParser jp = new JsonParser(); //from gson
JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent())); //convert the input stream to a json element
JsonObject rootobj = root.getAsJsonObject(); //may be an array, may be an object.
longitude = rootobj.get("price").getAsString();
latitude = rootobj.get("address").getAsString();
} catch (Exception e) {
e.printStackTrace();
}
I tried a loop to parse the array but that failed miserably. Any help regarding this problem is highly appreciated.
------------------------------EDIT-----------------------------------------------
I am extremely sorry about the incorrrect JSON code. I have updated the code but still cannot figure out the solution.

You JSON is wrong:
"date": "3 hours agp",
"distance": "1.9km"
}
{
"country": "Canada",
To coorect it, you must add a ,
"date": "3 hours agp",
"distance": "1.9km"
},
{
"country": "Canada",

Try this, using the basic org.json.JSONObject and org.json.JSONArray it works fine for me...
// This string is the JSON you gave as imput
String json = "{ \"status\": { \"error\": \"NO\", \"code\": 200, \"description\": \"none\", \"message\": \"Request ok\" }, \"geoLocation\": { \"city_id\": \"147\", \"city_long\": \"Saint-Laurent\", \"region_short\": \"QC\", \"region_long\": \"Quebec\", \"country_long\": \"Canada\", \"country_id\": \"43\", \"region_id\": \"35\" }, \"stations\": [ {\"country\": \"Canada\",\"price\": \"3.65\",\"address\": \"3885, Boulevard Saint-Rose\",\"diesel\": \"0\",\"id\": \"33862\",\"lat\": \"45.492367\",\"lng\": \"-73.710915\",\"station\": \"Shell\",\"region\": \"Quebec\",\"city\": \"Saint-Laurent\",\"date\": \"3 hours agp\",\"distance\": \"1.9km\" }, {\"country\": \"Canada\",\"price\": \"3.67\",\"address\": \"3885, Saint-Mary\",\"diesel\": \"0\",\"id\": \"33872\",\"lat\": \"45.492907\",\"lng\": \"-73.740715\",\"station\": \"Shell\",\"region\": \"Quebec\",\"city\": \"Saint-Laurent\",\"date\": \"3 hours agp\",\"distance\": \"2.0km\" } ]}";
try{
JSONObject rootobj = new JSONObject(json);
JSONArray array = rootobj.getJSONArray("stations");
for( int i = 0; i < array.length(); i++){
JSONObject o = array.getJSONObject(i);
String price = o.getString("price");
String address = o.getString("address");
//...
}
}catch(JSONException jse){
// Manage Exception here
}

Try below code to fetch data from url and parse the response using Gson.
Note : Remove "?callback=?" from your url, that will remove "?(" from your response
try {
String sURL = "http://api.mygasfeed.com/stations/radius/(39.631439)/(-80.8005451)/(25)/reg/(price)/uc82wk25m0.json";
URL u = new URL(sURL);
HttpURLConnection request = (HttpURLConnection) u.openConnection();
request.setRequestMethod("GET");
request.connect();
int status = request.getResponseCode();
switch (status) {
case 200:
case 201:
BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream()));
JsonElement element = new Gson().fromJson (br, JsonElement.class);
JsonObject jsonObj = element.getAsJsonObject();
JsonArray jArray = jsonObj.get("stations").getAsJsonArray();
for (int i = 0, size = jArray.length(); i < size; i++) {
JSONObject jObj = jArray.getJSONObject(i);
System.out.println(" Price : " + jObj.get("price").toString());
System.out.println(" Address : " + jObj.get("address").toString());
}
}
} catch (MalformedURLException ex) {
// Manage Exception here
} catch (IOException ex) {
// Manage Exception here
}

How to parse data from JSON array coming from FB graph API?

I am new to JSON. I'm working with the json processing library. Given a JSON such as:
{
"data": [
{
"name": "John Doe",
"id": "2980311"
},
{
"name": "Jane Doe",
"id": "10221412"
},
{
"name": "George Doe",
"id": "111623489"
}
],
"paging": {
"blah" : "blah"
}
}
How can I get the id values. I've started by trying to get an array to work with:
String URL = "https://graph.facebook.com/username/friends?access_token=";
String token = "";
String[] response = loadStrings(URL+token);
if(response != null) {
JSONObject result = new JSONObject(response);
JSONArray data = result.getJSONArray("data");
}
And this prints out:
JSONObject["data"] not found.
JSONObject["data"] is not a JSONArray.
But it's definitely getting the data. If I print out response I see the data.
What am I missing?

I'm not seeing a JSONObject constructor in that library that accepts String[] (the type of your response variable). There's JSONObject(String) and there's JSONObject(Object). If you pass a String[] into JSONObject, it'll match the latter, which doesn't (immediately) look to me like it'll do what you want.
I suspect you want to get a single String from the URL, which you'd then pass into JSONObject(String), at which point things should start working correctly.

try with this..
GraphObject responseGraphObject = response.getGraphObject();
JSONObject json = responseGraphObject.getInnerJSONObject();
JSONObject sys = json.getJSONObject("data");
Log.e("urlimage json", sys.getString("url"));