How to execute code in a parallel thread different from the main one?

Using one of the following mechanisms:

• Kotlin Coroutines: Lightweight, asynchronous framework for cooperative multitasking.

  GlobalScope.launch {
      // Code running in a parallel thread
  }
  

• Java Executor / ExecutorService: Thread pool management.

  ExecutorService executor = Executors.newSingleThreadExecutor();
  executor.execute(new Runnable() {
      @Override
      public void run() {
          // Code running in a parallel thread
      }
  });
  

• Thread class: Creating and managing a separate thread.

  new Thread(new Runnable() {
      @Override
      public void run() {
          // Code running in a parallel thread
      }
  }).start();
  

• AsyncTask class (less preferred in modern applications): Simplified mechanism for executing operations in the background and updating the UI.

  new AsyncTask<Void, Void, Void>() {
      @Override
      protected Void doInBackground(Void... voids) {
          // Code running in a parallel thread
          return null;
      }
  }.execute();