class TestBulb{

  public static void main(String[] args){

    Bulb b = new Bulb();

    System.out.println("Bulb is now " + b.stateToString() + ".");

    System.out.println("Change the state ....");
    b.change();

    System.out.println("Bulb is now " + b.stateToString() + ".");
    
    System.out.println("\nCreating a new bulb...");
  
    Bulb bTwo = new Bulb();
    
    if(bTwo.getState() == Bulb.ON)
      System.out.println("The bulb is on.");
    else
      System.out.println("The bulb is off.");
  
  }
}