Membuat aplikasi mesin tiket kereta api

PBO-A

Source Code :

 import java.util.Scanner;  
 /**  
  * Write a description of class TicketMachine here.  
  *  
  * @author (Hafidz Firman A.)  
  * @version (17092018)  
  */  
 public class TicketMachine  
 {  
   private int price;  
   private int balance;  
   private int total;  
   public TicketMachine(int cost)  
   {  
     price = cost;  
     balance = 0;  
     total = 0;  
   }  
   /**  
    * @Return The price of a ticket.  
    */  
   public int getPrice()  
   {  
     return price;  
   }  
   public int getBalance()  
   {  
     return balance;  
   }  
   public void insertMoney(int amount)  
   {  
     if(amount > 0) {  
       balance = balance + amount;  
     }  
     else {  
       System.out.println("Use a positive amount rather than: " +  
                 amount);  
     }  
   }  
   public void printTicket()  
   {  
     if(balance >= price) {  
       // Simulate the printing of a ticket.  
       System.out.println("##################");  
       System.out.println("# The BlueJ Line");  
       System.out.println("# Ticket");  
       System.out.println("# " + price + " cents.");  
       System.out.println("##################");  
       System.out.println();  
       // Update the total collected with the price.  
       total = total + price;  
       // Reduce the balance by the prince.  
       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;  
   }  
   public static void main(String args[]){   
     Scanner scan= new Scanner(System.in);   
     int cost, menu;  
     boolean entry;  
     System.out.println("Masukkan harga tiket \n");   
     cost = scan.nextInt();  
     TicketMachine ticket = new TicketMachine(cost);  
     entry = true;  
     while(entry) {  
       System.out.println("1. Get Price");   
       System.out.println("2. Get Balance");   
       System.out.println("3. Insert Money");   
       System.out.println("4. Print Ticket");   
       System.out.println("5. Exit");  
       menu=scan.nextInt();   
       switch(menu){   
         case 1:   
           cost=ticket.getPrice();   
           System.out.println(cost);  
           break;  
         case 2:   
           ticket.getBalance();  
           break;  
         case 3:   
           int money=scan.nextInt();   
           ticket.insertMoney(money);  
           break;  
         case 4:   
           ticket.printTicket();  
           break;  
         case 5:  
           entry = false;  
           break;  
       }  
     }  
   }  
 }  

output :