using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Febri Amelia Dewi X RPL");

        Console.WriteLine("RUMAH MAKAN BU GENDHUT");

        Console.WriteLine("=============================================");

        Console.WriteLine();

        mnu:

        Console.Write("Menu makanan         Harga");

        Console.WriteLine("\n1. Ayam Goreng       Rp10.000");

        Console.WriteLine("\n2. Nasi Goreng       Rp8.000");

        Console.WriteLine("\n3. Mie Pangsit       Rp10.000");

        Console.WriteLine("\n4. Nasi Liwet Rp12.000");

        Console.WriteLine("\n5. Nasi Campur       Rp8.000");

        Console.WriteLine("\n6. Jus Jeruk         Rp6.000");

        Console.WriteLine("\n7. Air Gelas         Rp500");

        Console.WriteLine("\nMasukkan Pilihan Anda");

        char menu = Convert.ToChar(Console.ReadLine());

        if (menu != '1' && menu!='2' && menu!='3' && menu!='4' && menu!='5' && menu!='6' && menu!='7'){

            Console.Write("Error");

            goto mnu;

        }

        if (menu == '1'){

            Console.WriteLine("Ayam Goreng");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 10000;

            if (Jml >= 2) Harga=(Jml*10000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

        }

        else if (menu == '2'){

            Console.WriteLine("Nasi Goreng");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 8000;

            if (Jml >= 2) Harga=(Jml*8000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

            }

        else if (menu == '3'){

            Console.WriteLine("Mie Pangsit");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 10000;

            if (Jml >= 2) Harga=(Jml*10000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

            }

        else if (menu == '4'){

            Console.WriteLine("Nasi Liwet");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 12000;

            if (Jml >= 2) Harga=(Jml*12000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

            }

        else if (menu == '5'){

            Console.WriteLine("Nasi Campur");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 8000;

            if (Jml >= 2) Harga=(Jml*8000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

            }

        else if (menu == '6'){

            Console.WriteLine("Jus Jeruk");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 6000;

            if (Jml >= 2) Harga=(Jml*6000);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

            }

        else if (menu == '7'){

            Console.WriteLine("Air Gelas");

            Console.WriteLine("\nMasukkan Jumlah");

            int Jml = Convert.ToInt32(Console.ReadLine());

            int Harga = 500;

            if (Jml >= 2) Harga=(Jml*500);

            Console.WriteLine("Total harga: Rp" +Harga);

            byr:

            Console.WriteLine("\nJumlah bayar: ");

            int byr = Convert.ToInt32(Console.ReadLine());

            int kembalian = byr - Harga;

            Console.WriteLine("Dibayar: Rp"+byr);

            Console.WriteLine("Kembali: Rp"+kembalian);

            if (byr < Harga){

                Console.WriteLine("\nKurang");

            goto byr;}

        }

            Console.WriteLine("Ada pesanan lain? Y/T");

            char YT = Convert.ToChar(Console.ReadLine());

            if(YT == 'Y'){

                goto mnu;}

            else if(YT == 'y'){

                goto mnu;}

            else if(YT == 'T'){

                Console.WriteLine("Terima kasih");}

            else if(YT == 't'){

                Console.WriteLine("Terima kasih");}

    }

}

​