How to convert Json Array to Android / Java Array

In this android programming source code example, we are going to convert Json Array to Android / Java Array.

You can copy and adopt this source code example to your android project without reinventing the wheel.

Below is a step by step source code to convert Json Array to Android / Java Array.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".json.Json6">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="JSONArray to Java Array"
        android:textSize="16sp"
        android:layout_gravity="center_horizontal"/>

</LinearLayout>

MainActivity.java

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;

import org.json.JSONArray;
import org.json.JSONException;

import java.util.ArrayList;

public class Json6 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_json6);

        //JSONArray
        JSONArray jsonArray = new JSONArray();
        jsonArray.put("Nigeria");
        jsonArray.put("Ghana");
        jsonArray.put("Algeria");
        jsonArray.put("Togo");

        ArrayList<String> jsonList = new ArrayList<>();
        if (jsonArray != null){
            int lenght = jsonArray.length();
            for (int i = 0; i <= lenght; i++){
                try {
                    jsonList.add(jsonArray.get(i).toString());
                    jsonList.toString();
                    Toast.makeText(getApplicationContext(), "The text in the JSONArray are:" + jsonList, Toast.LENGTH_LONG).show();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

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