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 ..

• Jason: Possible duplicate of android how to convert json array to string array
• howie: stackoverflow.com/questions/3395729/…
• Ryuzaki L: you mean you have JSONArray and need to convert it to String[]? is that what you mean?
• Arjun Nurdin: Yes Bro @Deadpool ..
• Ryuzaki L: can you show the code that you tried and also which library are you using? @ArjunNurdin

Answer 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 ..

• Arjun Nurdin: thx, regex solved my problem two years ago ... btw makasih loh

Answer 2

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

• Jason: You've sized the output array based on the input String[] which the OP doesn't have.
• Arjun Nurdin: Same sir error line 3 (String)jsonArray.getJSONObject(i)
• user3322481: Did you add import org.json.JSONArray; in your code?

Answer 3

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();
 }
}

Answer 4

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.