Hello My simple Json is and i have error org.json.JSONException: Index 2 out of range can you help me to solve this problem ? :
[
{
"cat_id": 593,
"title": "آلرژی و ایمونولوژی",
"sub_cat": [
{
"cat_id": 594,
"cat_title": "متخصص",
"cat_parent_fk": 593
},
{
"cat_id": 595,
"cat_title": "فوق تخصص",
"cat_parent_fk": 593
}
]
and get this json with this code but i have some error and just show two item of my json >15 item :
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int i = 0; i < response.length(); i++) {
try {
Cats cats = new Cats();
JSONObject jsonObject = (JSONObject) response.get(i);
String cat_id = jsonObject.getString("cat_id");
String title = jsonObject.getString("title");
String image_add = jsonObject.getString("image_add");
String image = jsonObject.getString("image");
JSONArray jsonArray = jsonObject.getJSONArray("sub_cat");
for (int j = 0; j < jsonArray.length(); j++) {
JSONObject object = jsonArray.getJSONObject(i);
int sub_cat_id = object.getInt("cat_id");
String sub_cat_title = object.getString("cat_title");
int sub_parent_fk = object.getInt("cat_parent_fk");
Log.i("log", "onResponse: "+ sub_cat_id + sub_cat_title + sub_parent_fk);
}
cats.setCat_id(cat_id);
cats.setTitle(title);
cats.setImage(image);
cats.setImage_add(image_add);
list.add(cats);
catsAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
Instead of i you should use j here as
JSONObject object = jsonArray.getJSONObject(j);
// ^^
Let's assume that your response has 3 json objects and every sub_cat has 2 objects so during the parsing of 3rd object of response (when i is 2) but sublist has 2 objects (index 0,1) so know (as mentioned above) this will try to fetch 3rd object from an array(sub_cat) of 2 objects, hence the issue so use
for (int j = 0; j < jsonArray.length(); j++) {
JSONObject object = jsonArray.getJSONObject(j);
// j represents the size of sub_cat. ^^
...
}
Related
I don't know how to parse a JSON if start with jsonArray instead jsonObject.
There's the JSON code.
[
{
"id": 1,
"title":
{
"rendered": "Apple apologises and fixes security flaw"
}
},
{
"id": 2,
"title":
{
"rendered": "Trophy hunting removes good genes and raises extinction risk"
}
}
...
]
I don't know how to get the JSONArray length. such as:
for (int i = 0; i < JSONArray.length(); i++)
{
JSONObject JSONObject1 = JSONArray.getJSONObject(i);
int id = JSONObject1.getInt("id");
string title = JSONObject1.getString("rendered");
}
Any help will be greatly appreciated!
Assuming that your json value is in this string variable : json
String json = "your_json_data";
JSONArray jsonarray = new JSONArray(json);
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonObject = jsonarray.getJSONObject(i);
int id = jsonObject.getInt("id");
JSONObject titleObject = jsonObject.getJSONObject("title");
String rendered = titleObject.getString("rendered");
}
Try below code
JSONArray jsonarray = new JSONArray(jsonStr);
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonObject= jsonarray.getJSONObject(i);
int id = jsonObject.getInt("id");
JSONObject jsonInner= jsonObject.getJSONObject("title");
string title = jsonInner.getString("rendered");
}
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");
}
Please help me to parse the following JSON data given below:
{
posts: [
{
count: 1,
user_id: "1",
name: "Dave Greeneberg",
email: "daveneberg#example.com",
profile_photo: "http://phontest.lbch.com//users/user1.jpg",
contest_count: "3",
photo_count: 19,
win_count: "0",
photos: [
"images/contest/diwali1.jpg",
"images/contest/diwalc2.jpg",
"images/contest/145043cd811.png",
"images/contest/145043def03411.jpg",
"images/contest/14504ger11.jpg"
]
}
]
}
I tried the following code but values in arrayList_ph is null. I am confused about how to parse this JSON content.
JSONObject object = new JSONObject(json);
JSONArray arr = object.getJSONArray("posts");
for (int index = 0; index < arr.length(); index++) {
JSONObject object1 = arr.getJSONObject(index);
user = arr.getJSONObject(0).getString("name");
user_email = arr.getJSONObject(0).getString("email");
user_profile = arr.getJSONObject(0).getString("profile_photo");
user_count = arr.getJSONObject(0).getString("count");
user_photo_count = arr.getJSONObject(0).getInt("photo_count");
contest_count = arr.getJSONObject(0).getString("contest_count");
win_count = arr.getJSONObject(0).getString("win_count");
JSONArray ph_arr= arr.getJSONObject(0).getJSONArray("photos");
for (int in = 0; in < ph_arr.length(); in++) {
arrayList_ph.add(ph_arr.getString(in));
}
}
Please help me to parse that field.
Please try this solution.
This solutions is worked for me.
JSONObject object = new JSONObject("");
JSONArray arr = object.optJSONArray("posts");
for (int index = 0; index < arr.length(); index++) {
JSONObject object1 = arr.optJSONObject(index);
user = object1.optString("name");
user_email = object1.optString("email");
user_profile = object1.optString("profile_photo");
user_count = object1.optString("count");
user_photo_count = object1.optInt("photo_count");
contest_count = object1.optString("contest_count");
win_count = object1.optString("win_count");
JSONArray ph_arr = object1.optJSONArray("photos");
for (int in = 0; in < ph_arr.length(); in++) {
String str = ph_arr.opt(in).toString();
arrayList_ph.add(str);
}
}
change your parsing code to this ,
JSONObject object = new JSONObject(json);
JSONArray arr = object.getJSONArray("posts");
for (int index = 0; index < arr.length(); index++) {
JSONObject object1 = arr.getJSONObject(index);
user = object1.getString("name");
user_email = object1.getString("email");
user_profile = object1.getString("profile_photo");
user_count = object1.getString("count");
user_photo_count = object1.getInt("photo_count");
contest_count = object1.getString("contest_count");
win_count = object1.getString("win_count");
JSONArray ph_arr= object1.getJSONArray("photos");
for (int in = 0; in < ph_arr.length(); in++) {
String str = ph_arr.get(in).toString();
arrayList_ph.add(str);
}
}
Try -
JSONObject object = new JSONObject(json);
JSONArray arr = object.getJSONArray("posts”);
for (int index = 0; index < arr.length(); index++) {
JSONObject object1 = arr.getJSONObject(index);
user = object1.getString("name");
user_email = object1.getString("email");
user_profile = object1.getString("profile_photo");
user_count = object1.getInt("count");
user_photo_count = object1.getInt("photo_count");
contest_count = object1.getString("contest_count");
win_count = object1.getString("win_count");
JSONArray photos_arr= object1.getJSONArray("photos");
for (int in = 0; in < ph_arr.length(); in++) {
String str = ph_arr.get(in).toString();
arrayList_ph.add(str);
}
}
Please cross check Following:
1) I think your json response is not properly formatted.
Validate from this: https://jsonformatter.curiousconcept.com/
Your json response should be :
{
"posts":[
{
"count":1,
"user_id":"1",
"name":"Dave Greeneberg",
"email":"daveneberg#example.com",
"profile_photo":"http://phontest.lbch.com//users/user1.jpg",
"contest_count":"3",
"photo_count":19,
"win_count":"0",
"photos":[
{
"image":"images/contest/diwali1.jpg"
},
{
"image":"images/contest/diwalc2.jpg"
},
{
"image":"images/contest/145043cd811.png"
},
{
"image":"images/contest/145043def03411.jpg"
},
{
"image":"images/contest/14504ger11.jpg"
}
]
}
]
}
2) If that still does not work...Try debugging and post your log please...
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) {
}
i want to parse data like below format in this format there are no any left side value for parse it so any idea how can i make it possible
JSON FORMAT
{
"labels": [
"Dec-2014",
"Jan-2015",
"Feb-2015",
"Mar-2015",
"Apr-2015",
"May-2015"
],
"data": [
0,
0,
0,
0,
0,
0
]
}
Try this
try {
JSONObject jsonObject = new JSONObject(
"{\"labels\": [\"Dec-2014\",\"Jan-2015\",\"Feb-2015\",\"Mar-2015\",\"Apr-2015\",\"May-2015\"],\"data\": [0,0,0,0,0,0]}");
JSONArray array = jsonObject.getJSONArray("labels");
for (int i = 0; i < array.length(); i++) {
String s = (String) array.get(i);
System.out.println(s);
}
JSONArray array2 = jsonObject.getJSONArray("data");
for (int i = 0; i < array2.length(); i++) {
String s = (String) array2.get(i);
System.out.println(s);
}
} catch (Exception e) {
}
Hope this will solve your problem!!!
You can get jsonData as follows.
JSONObject jsonObj=new JSONObject(urJson);
JSONArray labels=jsonObj.getJSONArray("labels");
ArrayList<String> lableList=new ArrayList<String>();
for (int i = 0; i < labels.length();i++)
{
lableList.add(labels.getString(i));
}
JSONArray data=jsonObj.getJSONArray("data");
ArrayList<String> dataList=new ArrayList<String>();
for (int i = 0; i < data.length();i++)
{
dataList.add(data.getString(i));
}
There are two array objects in your current Json, You can extract it as given below
// Data json array
JSONArray dataArry = obj.getJSONArray("genre");
ArrayList<String> data = new ArrayList<String>();
for (int j = 0; j < dataArry.length(); j++)
{
data.add((String) dataArry.get(j));
}
Same logic can be applied for labels too