CODEWITHSUNDEEP
javaandroidjson
mike628
mike628

Reputation: 49321

Java convert a Json string to an array

I have a Json String and I am trying to convert it to an array in Java.

public void DisplaySubjects(String subjects)
     {
         JSONObject jsonResponse;
         jsonResponse = new JSONObject(subjects));

Thats as far as I get.I'm not even sure if I have to create a object first.

What I will need to do eventuallay is attach it to a ArrayAdapter in an android app.

Thanks

Upvotes: 10

Views: 42336

Answers (3)

RotatingWheel
RotatingWheel

Reputation: 1051

You need to make JSON object first.

For example,

JSONObject jsonObject = new JSONObject(resp);

jsonObject may contains other JSON Objects or JSON array.

How to convert the JSON depends on the String.

There is a complete example with some explanation about JSON String to JSON array can be found at http://www.hemelix.com/JSONHandling.

Upvotes: 1

Prizoff
Prizoff

Reputation: 4575

Something like this:

ArrayList<String> jsonStringToArray(String jsonString) throws JSONException {

    ArrayList<String> stringArray = new ArrayList<String>();

    JSONArray jsonArray = new JSONArray(jsonString);

    for (int i = 0; i < jsonArray.length(); i++) {
        stringArray.add(jsonArray.getString(i));
    }

    return stringArray;
}

Upvotes: 16

Francisco Spaeth
Francisco Spaeth

Reputation: 23903

You could try something like:

new JSONArray(jsonString)

or if it is a property:

jsonObject.getJSONArray(propertyName)

Upvotes: 2

Related Questions