/*
 * Wrapper class seat holding a boolean value
 * for a seat in a (movie) theatre.
 *
 * Carsten Butz, September 2002
 */

public class Seat{

  /*
   * Instance variable:
   */

  private boolean occupied;

  /* 
   * Constructors:
   */

  Seat(){};

  Seat(boolean o){
    occupied = o;
  }

  /* 
   * Instance methods:
   */
  public boolean isFree(){
    return !this.occupied;
  }

  public boolean isOccupied(){
    return this.occupied; // keyword this isn't needed here
  }

  public boolean occupy(){
    if(occupied)
      return false;
    else
      {
	occupied = true;
	return true;
      }
  }
  
  public boolean release(){
    if(!isOccupied())
      return false;
    else  
      {
	occupied = false;
	return true;
      }
  }

}