How to put/get multiple JSONObjects to JSONArray?

Question

Is it possible to store multiple different JSONObjects into a single JSONArray? This is the structure, I want to store in a JSONArray.

[{"value1":1,"value2":900,"value3":1368349},{"value1":2,"value2":1900,"value3":136856},{"value1":3,"value2":600,"value3":136845}]

Here's the code where I am setting JSONObject and putting it into a JSONArray

if(somecondition) {
  // putting values to json object
  jsonObj.put("value1", 1);
  jsonObj.put("value2", 900);
  jsonObj.put("value3", 1368349);
}
for(int i=0;i<=jsonArray.length();i++){
  jsonArray.put(jsonObj);
  appObj.setJsonAlarmArray(jsonArray);
  // appObj is object of Application Class
  editor= sharedPrefs.edit();
  editor.putString("key", jsonArray.toString());
  System.out.println(jsonArray.toString());
  editor.commit();
}

Using this code only the last value, which I am setting in JSON object Override to all objects. Any suggestions to achieve this?

Pankaj Kharche · Accepted Answer · 2019-06-28 09:06:43Z

44

I found very good link for JSON: http://code.google.com/p/json-simple/wiki/EncodingExamples#Example_1-1_-_Encode_a_JSON_object

Here's code to add multiple JSONObjects to JSONArray.

JSONArray Obj = new JSONArray();
try {
    for(int i = 0; i < 3; i++) {
        // 1st object
        JSONObject list1 = new JSONObject();
        list1.put("val1",i+1);
        list1.put("val2",i+2);
        list1.put("val3",i+3);
        obj.put(list1);
    }

} catch (JSONException e1) {
    // TODO Auto-generated catch block
    e1.printStackTrace();
}             
Toast.makeText(MainActivity.this, ""+obj, Toast.LENGTH_LONG).show();

edited Jun 28, 2019 at 9:06

answered May 11, 2013 at 10:40

Pankaj Kharche

1,3294 gold badges15 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

chopss Over a year ago

I tried the same thing but only the last json object gets appended multiple times......i don't know what went wrong

Pankaj Kharche Over a year ago

its to late, but have you declare JSONObject outside to your for loop. @chopu

Ash · Accepted Answer · 2013-05-11 10:19:21Z

12

Once you have put the values into the JSONObject then put the JSONObject into the JSONArray staright after.

Something like this maybe:

jsonObj.put("value1", 1);
jsonObj.put("value2", 900);
jsonObj.put("value3", 1368349);
jsonArray.put(jsonObj);

Then create new JSONObject, put the other values into it and add it to the JSONArray:

jsonObj.put("value1", 2);
jsonObj.put("value2", 1900);
jsonObj.put("value3", 136856);
jsonArray.put(jsonObj);

answered May 11, 2013 at 10:19

Ash

1,2411 gold badge9 silver badges16 bronze badges

4 Comments

Pankaj Kharche Over a year ago

I am setting values in JSONObject on Button click. so when second time button is clicked the values of JSONObjects automatically set. @Ash

Ash Over a year ago

@PSK It looks like I have not understood the question properly, can you explain a bit further of what you are trying to do?

Pankaj Kharche Over a year ago

I have found very good link for JSON. I have added my answer.@Ash

Ash Over a year ago

@PSK So you have answered your own question now, because if you have you should accept it.

Shojaeddin · Accepted Answer · 2019-12-17 12:53:24Z

0

From android API Level 19, when I want to instance JSONArray object I put JSONObject directly as parameter like below:

JSONArray jsonArray=new JSONArray(jsonObject);

JSONArray has constructor to accept object.

answered Dec 17, 2019 at 12:53

Shojaeddin

2,0931 gold badge20 silver badges20 bronze badges

Collectives™ on Stack Overflow

How to put/get multiple JSONObjects to JSONArray?

3 Answers 3

2 Comments

4 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

4 Comments

Comments

Linked

Related