ETS PBO B Manless parking system

kali ini saya mengerjakan ETS PBO kelas B mensimulasikan mesin parkir sederhana
saya menggunakan kelas bill & kelas system parkir

source code bill

 /**  
  * Write a description of class system_parkir here.  
  *  
  * @author (Vinsensius Yuda P.)  
  * @version (UTS PBO B 15/10/2018)  
  */  
 /**  
  * bill  
  */  
 import java.util.Scanner;  
 public class bill  
 { public void print(String nopol, int kendaraan){  
   System.out.println("bill");  
   System.out.println("plat nomer : " + nopol);  
  if (kendaraan == 1)  
     {  
       System.out.println("motor fee parkir : 2000");  
     }  
     else  
     {  
       System.out.println("mobil fee parkir : 5000");  
     }  
   }}  

source code system parkir

 /**  
  * Write a description of class system_parkir here.  
  *  
  * @author (Vinsensius Yuda P.)  
  * @version (UTS PBO B 15/10/2018)  
  */  
 /**  
  * sistem parkir  
  */  
 import java.util.Scanner;  
 public class system_parkir  
 {  
    public static void main (String[] args){  
   int bayar;  
   int hrg1 = 2000;  
   int hrg2 = 5000;  
   int kendaraan;  
   String nopol;  
   bill karcisbayar = new bill();  
   Scanner inp = new Scanner(System.in);  
   System.out.println("***************************");  
    System.out.println("Selamat Datang di Manless parking");  
    System.out.println("Parkir Sekali Bayar!!!");  
    System.out.println("input nopol :" );  
    nopol = inp.nextLine();  
    System.out.println("pilih jenis kendaraan :");  
    System.out.println("1.Motor @2000");  
    System.out.println("2.Mobil @5000");  
    kendaraan = inp.nextInt();  
    System.out.println("Ambil karcis");  
    System.out.println("*************");  
    System.out.println("Karcis parkir");  
    System.out.println("Plat Nomor" +nopol);  
    System.out.println("*************");  
    if (kendaraan == 1)  
    {System.out.println("Tarif parkir untuk motor");  
     System.out.println("Biaya :"+ hrg1);  
     System.out.println("Bayar :");  
     bayar = inp.nextInt();  
     while (bayar < hrg1)  
       {  
         System.out.println("Maaf pembayaran kurang " + (hrg1 - bayar));  
         bayar += inp.nextInt();  
       }  
       karcisbayar.print(nopol,kendaraan);  
       System.out.println("Silahkan Keluar");  
     }  
    if (kendaraan == 2)  
    {System.out.println("Tarif parkir untuk mobil");  
     System.out.println("Biaya :"+ hrg2);  
     bayar = inp.nextInt();  
     while (bayar < hrg1)  
       {  
         System.out.println("Maaf pembayaran kurang " + (hrg2 - bayar));  
         bayar += inp.nextInt();  
       }  
        karcisbayar.print(nopol,kendaraan);  
       System.out.println("Silahkan Keluar");  
   }  
 }}    

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