Anonymous class can be replaced with inner class

class Example {
  public static void main(String[] args) {
    new Thread() {
      public void run() {
        work()
      }

      private void work() {}
    }.start();
  }
}

class Example {
  public static void main(String[] args) {
    new MyThread().start();
  }

  private static class MyThread extends Thread {
    public void run() {
      work();
    }

    private void work() {}
  }
}