Convert JSONArray to String[] Array

Question

i have some problem Like This ..

["IMG-20181223-WA0010.jpg","IMG-20181225-WA0013.jpg","IMG-20181229-WA0001.jpg"]

How To convert JSONArray like that from real array in java ?? Sorry Bad English ..

Possible duplicate of [android how to convert json array to string array](https://stackoverflow.com/questions/6356231/android-how-to-convert-json-array-to-string-array) — Jason, Mar 11 '19 at 01:54
https://stackoverflow.com/questions/3395729/convert-json-array-to-normal-java-array — howie, Mar 11 '19 at 01:55
you mean you have `JSONArray` and need to convert it to `String[]`? is that what you mean? — Ryuzaki L, Mar 11 '19 at 02:39
can you show the code that you tried and also which library are you using? @ArjunNurdin — Ryuzaki L, Mar 11 '19 at 03:27
ok `import dev.x01.gz.kasir.Model.ItemBarang; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject;` Like this ?? — Arjun Nurdin, Mar 11 '19 at 03:39

Arjun Nurdin · Accepted Answer · 2019-03-11T23:23:20.000

1

i'm put the JSONArray to the string toString(), and i'm convert by regular expression like this ..

public String getImg(String d){
    return rubahFormat(d).split(",");
}

public String rubahFormat(String d){
    return d.replaceAll("[\\[\\]\\\"]","");
}

Thx ..

edited Mar 11 '19 at 23:23

answered Mar 11 '19 at 21:57

Arjun Nurdin

13
1
10

thx, regex solved my problem two years ago ... btw makasih loh – Arjun Nurdin Dec 07 '20 at 09:13

user3322481 · Answer 2 · 2019-03-11T02:18:49.513

0

String[] stringArray = new String[jsonArray.length()];
for (int i = 0; i < jsonArray.length(); i++) {
    stringArray[i]= (String)jsonArray.getJSONObject(i);
}

jsonArray is your JSON object and stringArray variable will store as string array type

edited Mar 11 '19 at 02:18

answered Mar 11 '19 at 01:54

user3322481

305
2
4

You've sized the output array based on the input `String[]` which the OP doesn't have. – Jason Mar 11 '19 at 01:55
Same sir error line 3 `(String)jsonArray.getJSONObject(i)` – Arjun Nurdin Mar 11 '19 at 02:44
Did you add `import org.json.JSONArray;` in your code? – user3322481 Mar 11 '19 at 02:47

score 0 · Answer 3 · answered Mar 11 '19 at 07:27

You should try like this and it will help you

import net.sf.json.JSONArray;

public class JsonArraytoArray {

    JSONArray jsonArray = new JSONArray();

    public void convertJsonarrtoArray() {
        jsonArray.add("java");
        jsonArray.add("test");
        jsonArray.add("work");
        String[] stringArray = new String[jsonArray.size()];
        for (int i = 0; i < jsonArray.size(); i++) {
            stringArray[i] = jsonArray.getString(i);
        }
        System.out.println("stringArray  " + stringArray.length);
    }

    public static void main(String[] args) {
        JsonArraytoArray d = new JsonArraytoArray();
        d.convertJsonarrtoArray();
    }

}

score 0 · Answer 4 · answered Mar 11 '19 at 22:10

You can use Java Streams to do that for you:

    String[] data = new String[] { "value1", "value2", "value3" };
    String jsonArray = "[\"" + Stream.of(data).collect(Collectors.joining("\", \"")) + "\"]";

The steam collector adds the ", " between two values. Now simply add the [" at the beginning, and the corresponding end.

Convert JSONArray to String[] Array

4 Answers4