class SwingException extends Exception {}
class CloseException extends Exception {}

class Door implements AutoCloseable {

  public void swing() throws Exception {
    System.out.println("The door is becoming unhinged!");
      close();
      throw new SwingException();
    }

    public void close() throws Exception {
      System.out.println("The door is now closed.");
      throw new CloseException();
    }
}