How to get values from JSONArray using Java [Simple-JSON]

I'm trying to get the value of "image" from the below shown JSON using JAVA:

Media.json:

[
    {
      "input": {
        "contentData": {
          "image":"Resources/RawImages/Media/InputImage/Media.jpg",
          "imageMetaData": {
            "DMLR":"",
            "imageCaptions":["cool"]
          }
        },
        "requestMetaData": {
          "requestId": "12345678",
          "locale": "en_US"
        }

      },
      "output": {
        "isTrue": true,
        "mMD": {
          "mcT": 0
        },
        "result": {
          "CR": 0.9039373397827148,
          "category": [
            {
              "Name": "Car",
              "score": 0.9039373397827148
            }
          ]
        }
      }
    }
  ]

Function:

public static String getImageFilePath() throws IOException, ParseException {
        JSONParser readJSON = new JSONParser();
        JSONArray image2Json = (JSONArray) readJSON.parse(new FileReader("/Resources/RawImages/"
                + "Media/InputJson/Media.json") );

        JSONObject imgFilePath = (JSONObject) image2Json.get(1);


        return imgFilePath.toString();

Error Message:

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 1 out of bounds for length 1
    at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
    at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
    at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266)
    at java.base/java.util.Objects.checkIndex(Objects.java:361)
    at java.base/java.util.ArrayList.get(ArrayList.java:427)
    at com.example.mediaservice.TestUtils.CommonTestUtils.getImageFilePath(CommonTestUtils.java:92)
    at com.example.mediaservice.TestUtils.CommonTestUtils.imageEncoder(CommonTestUtils.java:63)
    at com.example.mediaservice.TestUtils.CommonTestUtils.main(CommonTestUtils.java:37)

Process finished with exit code 1

Solution

The problem is that you are trying to get the item at position 1 out of the array and your array only contains 1 item. Arrays are zero based so to get the first item you need to get the item at position 0. Instead of:

JSONObject imgFilePath = (JSONObject) image2Json.get(1);

use:

JSONObject imgFilePath = (JSONObject) image2Json.get(0);

The exception you are seeing tells you this here:

IndexOutOfBoundsException: Index 1 out of bounds for length 1