CODEWITHSUNDEEP
javajsonarraylist
newbie
newbie

Reputation: 157

How to convert ArrayList to JSON object

public ArrayList<String> convertJsonToJsonObject(){

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

    mylist.add("abc");
    mylist.add("cfd");
    mylist.add("ert");
    mylist.add("fg");
    mylist.add("ujk");
    mylist.add("wer");

    mylist.add("dvb");
    mylist.add("ert");


    System.out.println("JSONObject :: "+(JSONObject)JSONSerializer.toJson(mylist));
}

I am having error at .toJson() method, I am not sure what is the mistake I am making.

Upvotes: 16

Views: 107745

Answers (5)

Shaaban Ebrahim
Shaaban Ebrahim

Reputation: 10422

ArrayList<Domain> list = new ArrayList<Domain>();
list.add(new Domain());
list.add(new Domain());
list.add(new Domain());
String json = new Gson().toJson(list);

Upvotes: 3

Andriya
Andriya

Reputation: 241

List<String> bibo = new ArrayList<String>();
bibo.add("obj1");
bibo.add("obj2");
bibo.add("obj3");
String json = new Gson().toJson(bibo);

Upvotes: 2

SparkOn
SparkOn

Reputation: 8956

JSONArray jsArray = new JSONArray(mylist);

Or

Gson gson = new Gson();
String jsonArray = gson.toJson(mylist);

Get java-json.jar and Gson.jar here

Upvotes: 9

rageandqq
rageandqq

Reputation: 2291

You can use the GSON library to accomplish this.

 ArrayList<String> mylist = new ArrayList<String> ();
 mylist.add("abc");
 mylist.add("cfd");
 mylist.add("ert");
 mylist.add("fg");
 mylist.add("ujk");
 String json = new Gson().toJson(mylist);

You can refer to the GSON User Guide for more support.

Upvotes: 23

dikkini
dikkini

Reputation: 1182

gson.toJson(object);

Gson Google Group

Upvotes: 3

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