Accessing Members of Items in a JSONarray with Java

Accessing members of items in a JSONArray with Java

Have you tried using JSONArray.getJSONObject(int), and JSONArray.length() to create your for-loop:

for (int i = 0; i < recs.length(); ++i) {
    JSONObject rec = recs.getJSONObject(i);
    int id = rec.getInt("id");
    String loc = rec.getString("loc");
    // ...
}

Accessing elements in JSON array

First of all, please have a look at this answer. Using org.json you can do smth. like that:

JSONObject obj = new JSONObject("Content of your string here");
JSONArray rows = obj.getJSONArray("rows");
for (int i = 0; i < rows.length(); i++) {
 JSONArray elements = rows.getJSONObject(i).getJSONArray("elements");
  for(int j = 0; j < elements.length(); j++) {
   JSONObject element = elements.getJSONObject(j);
   JSONObject duration = element.getJSONObject("duration");
   int value = duration.getInt("value");
  }
 }

The code above has produced following output using your json String: 14147

P.S. You can make use of a library you wish. This one used here was purposed for the demonstrating.

get value by key jsonarray

You can parse your jsonResponse like below code :

private void parseJsonData(String jsonResponse){
        try
        {
            JSONArray jsonArray = new JSONArray(jsonResponse);

            for(int i=0;i<jsonArray.length();i++)
            {
                JSONObject jsonObject1 = jsonArray.getJSONObject(i);
                String value1 = jsonObject1.optString("key1");
                String value2 = jsonObject1.optString("key2");
                String value3 = jsonObject1.optString("key3");
                String value4 = jsonObject1.optString("key4");
            }
        }
        catch (JSONException e)
        {
            e.printStackTrace();
        }
    }

Access only the First Object from a JSON Array

The data at "1" refers to another JSONArray, so to get the first item in the array you would do something like this:

JSONArray array = contact.getJSONArray("1");
array.getString(0);

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In JSON objects are denoted using {} and arrays with []. If you're trying to access a specific value in your JSON object then it's really just a case of following the path to it, through the arrays and objects.

how to access json array element in java

EDIT

Try following:

  String response=response.getBody(); 
  JSONObject res = new JSONObject();
  System.out.println(res);
  int len=res.size();
  System.out.println(len);
  JSONParser parser=new JSONParser();
    Object obj = parser.parse(response);
    JSONArray array = (JSONArray)obj;
    res=(JSONObject)array.get(0);
    System.out.println(res.get("bId"));

Output :

n86nbnhbnghgy76

This one is based on your code and with Simple Json Library.

How to access repeated elements in JSON object java?

You need first to get the "elements" property as a JSONArray. Then you can retrieve the JSONObject holding lat as follow:

JSONObject jsonObj = new JSONObject(string);
JSONArray resultArray = jsonObj.getJSONArray("elements");
for (int i = 0; i < resultArray.length(); i++) {
    JSONObject item = resultArray.getJSONObject(i);
     
    // Now you can retrieve the lat
    double lat = item.getDouble("lat");  // Not getString("lat") because lat is a number, not a string
    ...
}

Java - How to get object value in JSON array?

JSON needs to be traversed in order to access id:

JSONArray results = shipmentData.getJSONArray("results");
JSONObject first = results.getJSONObject(0);
JSONObject shipper = first.getJSONObject("shipper");
Integer id = shipper.getInt("id");

Parse int to string:

String id = String.valueOf(shipper.getInt("id"));

Getting JSONObject from JSONArray

JSONArray objects have a function getJSONObject(int index), you can loop through all of the JSONObjects by writing a simple for-loop:

JSONArray array;
for(int n = 0; n < array.length(); n++)
{
    JSONObject object = array.getJSONObject(n);
    // do some stuff....
}

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