public class TicketMachine
 {
 // The price of a ticket from this machine.
 private int price;
 // The amount of money entered by a customer so far.
 private int balance;
 // The total amount of money collected by this machine.
 private int total;
 /**
 * Create a machine that issues tickets of the given price.
 * Note that the price must be greater than zero, and there
 * are no checks to ensure this.
 */
 public TicketMachine(int ticketCost)
 {
  price = ticketCost;
  balance = 0;
  total = 0;
 }
 /**
 * Return the price of a ticket.
 */
 public int getPrice()
 {
  return price;
 }
 /**
 * Return the amount of money already inserted for the
 * next ticket.
 */
 public int getBalance()
 {
   return balance;
 }
 /**
 * Receive an amount of money in cents from a customer.
 */
 public void insertMoney(int amount)
 {
   balance = balance + amount;
 }
 /**
 * Print a ticket.
 * Update the total collected and
 * reduce the balance to zero.
 */
 public void printTicket()
 {
   // Simulate the printing of a ticket.
   System.out.println("##################");
   System.out.println("# Ticket Machine");
   System.out.println("# Ticket");
   System.out.println("# " + price + " cents.");
   System.out.println("##################");
   System.out.println();
   // Update the total collected with the balance.
   total = total + balance;
   // Clear the balance.
   balance = 0;
 }
 }