Java自动售票机_Java自动售票机_

/** * TicketMachine是自动售票机的一个类 * The price of a ticket is specificed via the constructor.* * @author 李宝玉 * @version 2017.03.22 */ public class TicketMachine { private int price; private int balance; private int total; /** * Create a machine that issues tickets of the given price. * are no checkh to ensure this. * @param ticketCost the price of a ticket */ public TicketMachine(int ticketCost){ if(ticketCost>0){ price=ticketCost; } balance=0; total=0; } /** * Return the price of a ticket. * @return the price of a ticket */ public int getPrice() { return price; } /** * Return the amount of money already inderted for the next ticket. * @return the amount of money already inderted for the next ticke */ public int getBalance(){ return balance; } /** * Receive an amount of money from a customer. * @param amount an amount of money from a customer */ public void insertMoney (int amount){ if(amount>0){ balance=balance+amount; } else{ System.out.println("Use a positive amount："+amount); } } /** * Print a ticket. * Update the */ public void priceTicket(){ if(balance>=price){ System.out.println("##############"); System.out.println("#901路"); System.out.println("#Ticket"); System.out.println("#"+price+"元"); System.out.println("##############"); System.out.println(); total=total+price; balance=balance-price; } else{ System.out.println("You must insert at least："+(price-balance)+"more cents."); } } public int refundBalance(){ int amountToRefund; amountToRefund=balance; balance=0; return amountToRefund; } }