Develop Reference

Issue while getting values from json?

Here my json response,
"stops": [
{
"location": "The Sachdevs, 17, GAA 4th Ln, Thousand Lights West, Nungambakkam, Chennai, Tamil Na
"latlong": {
"lon": 80.250285901129,
"lat": 13.05583158449
},
"stop_code": "stop_1522754972",
"status": ""
},
]
error in this line :
jSONObject cat_object2 = latLong_object.getJSONObject(j); Object
cannot appolien in int
Here my java code,
Any one give me the solution.
Object stops = response_object.get("stops");
if (stops instanceof JSONArray) {
JSONArray stops_array = response_object.getJSONArray("stops");
if (stops_array.length() > 0) {
maplist.clear();
for (int k = 0; k < stops_array.length(); k++) {
JSONObject cat_object = stops_array.getJSONObject(k);
MultipleLatLongPojo pojo = new MultipleLatLongPojo();
pojo.setLocation(cat_object.getString("location"));
pojo.setStopcode(cat_object.getString("stop_code"));
pojo.setStatus(cat_object.getString("status"));
JSONObject latLong_object = cat_object.getJSONObject("latlong");
if (latLong_object.length() > 0) {
for (int j = 0; j < latLong_object.length(); j++) {
JSONObject cat_object2 = latLong_object.getJSONObject(j);
MultipleLatLongPojo pojo2 = new MultipleLatLongPojo();
pojo2.setMulti_lat(cat_object2.getString("lon"));
pojo2.setMulti_lon(cat_object2.getString("lat"));
}
} else {
}
}
}
}

Your latlong property in the json is not an array but an object with two properies (lat and lon), so you do not need to iterate through it's length and this part of your code:
JSONObject latLong_object = cat_object.getJSONObject("latlong");
if (latLong_object.length() > 0) {
for (int j = 0; j < latLong_object.length(); j++) {
JSONObject cat_object2 = latLong_object.getJSONObject(j);
MultipleLatLongPojo pojo2 = new MultipleLatLongPojo();
pojo2.setMulti_lat(cat_object2.getString("lon"));
pojo2.setMulti_lon(cat_object2.getString("lat"));
}
}
should be something like this:
JSONObject latLong_object = cat_object.getJSONObject("latlong");
if(latLong_object != null) {
MultipleLatLongPojo pojo2 = new MultipleLatLongPojo();
pojo2.setMulti_lat(latLong_object.getString("lon"));
pojo2.setMulti_lon(latLong_object.getString("lat"));
}

getJSONArray inside another json array

I have the following JSON struncture:
{
"schedule":{
"day":[
{
"id":"Monday",
"items":[
{
},
{
}
]
},
{
"id":"Tuesday",
"items":[
{
},
{
}
]
}
]
}
}
And what I basically want to do is reach the items array inside the day array which is inside the schedule object.
But whenever I try to get the second JSON array, I get getJSONArray
(int) in JSONArray cannot be applied to (java.lang.String).
JSONObject baseJsonResponse = new JSONObject(dayJSON);
JSONArray dayArray = baseJsonResponse.getJSONObject("schedule").getJSONArray("day").getJSONArray("items");

You should use Two for loop respect to JSONArray.
JSONObject obj = new JSONObject(success);
JSONObject JOBJ_Schedule = obj.getJSONObject("schedule");
JSONArray schedule_Array = JOBJ_Schedule.getJSONArray("day");
for (int i = 0; i < schedule_Array.length(); i++)
{
JSONObject jOBJ = schedule_Array.getJSONObject(i);
JSONArray jArray = jOBJ.getJSONArray("items");
for (int j = 0; j < jArray.length(); j++)
{
JSONObject jOBJNEW = jArray.getJSONObject(j);
}
}

Looks like day is a list of objects. So basically, you'd have to do something like getJSONArray("day").get(0).getJSONArray("items").

you can try this
try {
JSONObject baseJsonResponse = new JSONObject("dayJSON");
JSONObject schedule= baseJsonResponse.getJSONObject("schedule");
JSONArray day=schedule.optJSONArray("day");
for (int i=0; i<day.length(); i++) {
JSONObject data = day.getJSONObject(i);
String id = data.getString("id");
JSONArray items = data.getJSONArray("items");
for (int j = 0; j < items.length(); j++) {
JSONObject data2 = day.getJSONObject(i);
String str = data2.getString("YOurkey");
Log.e("categories", str);
}
}
} catch (JSONException e) {
e.printStackTrace();
}

According to the JSON you provided, baseJsonResponse.getJSONObject("schedule").getJSONArray("day") will return you a JSONArray instead of JSONObject.
There is a "item" JSONArray inside each "day" JSONObject. < May be this is the reason.
You can try
for(int i = 0 ; i < baseJsonResponse.getJSONObject("schedule").getJSONArray("day").length() ; i++){
JSONArray itemArray = baseJsonResponse.getJSONObject("schedule").getJSONArray("day")
.getJSONObject(i).getJSONArray("items");
}

Parsing JSON for android the JSON is valid but cant get anything back

I'm having trouble getting the String "lf" in this case North Atlantic Treaty Organization
[
{
"sf": "NATO",
"lfs": [
{
"lf": "North Atlantic Treaty Organization",
"freq": 13,
"since": 2001,
"vars": [
{
"lf": "North Atlantic Treaty Organization",
"freq": 13,
"since": 2001
}
]
}
]
}
]
//MY CODE
try {
JSONObject jsonObject = new JSONObject(result);
JSONArray jsonArray = jsonObject.getJSONArray(ITEM_TAG);
for(int i = 0; i < jsonArray.length(); i++) {
JSONObject c = jsonArray.getJSONObject(i);
String name = c.getString("lf");
acronyms = new ArrayList<>();
acronyms.add(name);
}
} catch (Exception e) {
}

try {
JSONArray jsonArray1 = new JSONArray(JsonString);
for (int i = 0; i <= jsonArray1.length(); i++) {
JSONObject jsonObject2 = jsonArray1.getJSONObject(i);
String mStrSf = jsonObject2.getString("sf");
Toast.makeText(getApplicationContext(),mStrSf.toString(), Toast.LENGTH_LONG).show();
JSONArray jsonArray3 = jsonObject2.getJSONArray("lfs");
for (int j = 0; j <= jsonArray3.length(); j++) {
JSONObject jsonObject4 = jsonArray3.getJSONObject(j);
String mStrIf = jsonObject4.getString("lf");
String mStrFreq = jsonObject4.getString("freq");
String mStrSince = jsonObject4.getString("since");
Toast.makeText(getApplicationContext(),mStrIf+"\n"+mStrFreq+"\n"+mStrSince, Toast.LENGTH_LONG).show();
JSONArray jsonArray5 = jsonObject4.getJSONArray("vars");
for (int k = 0; k <= jsonArray5.length(); k++) {
JSONObject jsonObject6 = jsonArray5.getJSONObject(k);
String mStrIf1 = jsonObject6.getString("lf");
String mStrFreq1 = jsonObject6.getString("freq");
String mStrSince1 = jsonObject6.getString("since");
Toast.makeText(getApplicationContext(),mStrIf1+"\n"+mStrFreq1+"\n"+mStrSince1, Toast.LENGTH_LONG).show();
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}

You are interpreting the json in a wrong way... if you analyse the json chain you will get this:
as you can see you have an array inside and array...
hope the picture helps you to see it better.

You have to again loop through the jsonArray to get "lf" key value.
Try this...
try {
JSONObject jsonObject = new JSONObject(result);
JSONArray jsonArray = jsonObject.getJSONArray(ITEM_TAG);
for(int i = 0; i < jsonArray.length(); i++) {
JSONObject c = jsonArray.getJSONObject(i);
JSONArray array = c.getJSONArray("lfs");
for(int j=0;j<array.length();j++){
JSONObject obj = array.getJSONObject(j);
String name = obj.getString("lf");
}
}
} catch (Exception e) {
}

How to get this data in JSON in android

I have this data form this URL
http://api.clicky.com/api/stats/4?site_id=32020&sitekey=71bf7c1681e22468&type=visitors&output=json&json_callback=data%22
and how to get this in android,
my problem is how to access all this objects and array, help me
[
{
"type": "visitors",
"dates": [
{
"date": "2014-12-25",
"items": [
{ "value":"70" }
]
}
]
}
]

JSONArray jsonArray = new JSONArray("here is your json string ") ;
int count = jsonArray.length() ;
for (int i = 0; i < count; i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i) ;
String type = jsonObject.optString("type") ;
JSONArray datesArray = jsonObject.optJSONArray("dates") ;
int datesCount = datesArray.length() ;
for(int j = 0; j< datesCount; j++){
JSONObject dateItem = datesArray.get(j) ;
String dateStr = dateItem.optString("date");
JSONArray itemsArray = dateItem.optJSONArray("items");
for(int f = 0 ; f < itemsArray.length(); f++){
JSONObject valueJson = itemsArray.get(f);
String value = valueJson.optString("value");
}
}
}

I think, you can use GSON library for parsing your JSON. Just create class for JSON and use this code:
new Gson().fromJson(json, MyGsonClass.class);

Android JSON getJSONObject not working, incorrect parsing

I cannot figure out why my parsing is not working, this is my JSON:
{
"fileVersion":"1.0",
"graves":[
{
"ID_grave":"1",
"ID_line":"1",
"sequence":"1",
"persons":[
{
"ID_person":"1",
"name":"Janez",
"surname":"Novak",
"dateBirth":"1956-08-11",
"dateDeath":"2014-02-12",
"important":"0",
"imp_desc":""
}
]
},
{
"ID_grave":"2",
"ID_line":"1",
"sequence":"2",
"persons":[
{
"ID_person":"2",
"name":"Mojca",
"surname":"Novak",
"dateBirth":"1953-02-13",
"dateDeath":"2012-04-08",
"important":"0",
"imp_desc":""
}
]
}
]
}
This code is working, when I want to get the first JSONObject:
String jsonData = convertStreamToString(in);
JSONObject json = new JSONObject(jsonData);
JSONArray name = json.getJSONArray("graves");
for (int i = 0; i < name.length(); i++) {
JSONObject grave = name.getJSONObject(i);
lineArrayList.add(grave.getString("ID_line"));
graveArrayList.add(grave.getString("ID_grave"));
}
But I would like to get the "persons" array in "graves" object. This should work but it's not, I am getting only the first persons array, where the name is Janez and not the second array where the name is Mojca:
String jsonData = convertStreamToString(in);
JSONObject json = new JSONObject(jsonData);
JSONArray name = json.getJSONArray("graves");
for (int i = 0; i < name.length(); i++) {
JSONObject grave = name.getJSONObject(i);
JSONArray persons = grave.getJSONArray("persons");
for (int k = 0; k < persons.length(); k++) {
//The problem was because of the index i, you have to change to k and it will work
JSONObject grave = persons.getJSONObject(i);
nameArrayList.add(grave.getString("name"));
surnameArrayList.add(grave.getString("surname"));
}
}

graves is a JSONArray and persons is a JSONArray into graves
for (int i = 0; i < name.length(); i++) {
JSONObject grave = name.getJSONObject(i);
JSONArray persons = grave.optJSONArray("persons");
if (persons != null) {
for (int j = 0; j < persons.length(); j++) {
}
}
}

Do your parsing as follows ,
String jsonData = convertStreamToString(in);
JSONObject json = new JSONObject(jsonData);
JSONArray name = json.getJSONArray("graves");
for (int i = 0; i < name.length(); i++) {
JSONObject grave = name.getJSONObject(i);
JSONArray persons = grave.getJSONArray("persons");
for (int k = 0; k < persons.length(); k++) {
JSONObject grave = persons.getJSONObject(i);
nameArrayList.add(grave.getString("name"));
surnameArrayList.add(grave.getString("surname"));
}
}

Try This:
for (int i = 0; i < name.length(); i++) {
JSONObject grave = name.getJSONObject(i);
JSONArray persons = grave.optJSONArray("persons");
if (persons != null) {
for (int j = 0; j < persons.length(); j++) {
JSONObject grave= persons.getJSONObject(i);
lineArrayList.add(grave.getString("ID_line"));
//so on..
}
}

Ok only today I discovered that I am getting the data only from the first persons array and from the second where for example is a person with a name Mojca..I tried all the three given solutions but nothing works..