Converting JSON into Javascript Objects

Converting JSON into Objects in Android Studio in java or kotlin

Parsing JSON data in Android is a common task for exchanging data between your app and web services or other applications. Here's a breakdown of the built-in Android functionalities for JSON parsing:

JSON (Javascript Object Notation) is a programming language . It is minimal, textual, and a subset of JavaScript. It is an alternative to XML.

Android provides support to parse the JSON object and array.

Advantage of JSON over XML

1) JSON is faster and easier than xml for AJAX applications.

2) Unlike XML, it is shorter and quicker to read and write.

3) It uses array.

Using Built-in JSONObject and JSONArray Classes:

Android provides the JSONObject and JSONArray classes for working with JSON data. Here's a basic example:

Java

String jsonString = "Check The screenshot below;


{"year_lord":"Mercury","varshaphal_date":"24-06-2024 05:33:41","chart":[{"sign":3,"sign_name":"Gemini","planet":["SUN","MERCURY","VENUS"],"planet_small":["Su ","Me ","Ve "],"planet_degree":[]},

try {
   JSONObject jsonResponse = new JSONObject(response);
  year_lord = jsonResponse.getString("year_lord");
  online.setText("Year Lord-"+year_lord);
  varshaphal_date= jsonResponse.getString("varshaphal_date");

  final String chart = jsonResponse.getString("chart");
  JSONArray jsonArray = new JSONArray(chart);

//  JSONArray jsonArray = new JSONArray("chart");
  Log.d("varshaphal--", "onResponse: " + jsonArray);
  //  for(int i=0; i<jsonArray.length(); i++) {
  jsonObject0 = jsonArray.getJSONObject(0);
  jsonObject1 = jsonArray.getJSONObject(1);
  jsonObject2 = jsonArray.getJSONObject(2);

} catch (JSONException e) {
  e.printStackTrace();
}
textname.setText(jsonObject0.getString("planet_small").replaceAll("[^a-zA-Z0-9]", " "));
Anytextname.setText(jsonObject0.getString("sign"));

JSON is a lightweight and structured language. Android supports all the JSON classes such as JSONStringer, JSONObject, JSONArray, and all other forms to parse the JSON data and fetch the required information by the program. JSON’s main advantage is that it is a language-independent, and the JSON object will contain data like a key/value pair. In general, JSON nodes will start with a square bracket ([) or with a curly bracket ({). The square and curly bracket’s primary difference is that the square bracket ([) represents the beginning of a JSONArray node. Whereas, the curly bracket ({) represents a JSONObject. So one needs to call the appropriate method to get the data. Sometimes JSON data start with [. We then need to use the getJSONArray() method to get the data. Similarly, if it starts with {, then we need to use the getJSONobject() method.

Additional Considerations:
For more complex JSON structures, consider using libraries like Gson or Jackson for easier parsing and object mapping.
Always validate the JSON data to ensure it's well-formed before parsing to avoid exceptions.
By understanding these core functionalities, you can effectively parse JSON data within your Android applications.