public static void LuyenTap_Interface()
{
Ramen ramen = new Ramen();
ramen.gioMoCua();
ramen.An();
ramen.diMuaMi();
Console.WriteLine("Thoi gian trung {0} la {1} phut", ramen.getName(), ramen.thoiGianTrunMi());
Console.WriteLine("Thanh tien: " + ramen.tinhTien().ToString("N"));
Console.WriteLine();
Sushi suShi = new Sushi();
suShi.gioMoCua();
suShi.An();
suShi.diMuaCa();
Console.WriteLine("Thanh tien: " + suShi.tinhTien().ToString("N"));
Console.WriteLine();
Soba soba = new Soba();
soba.An();
Console.WriteLine("Thoi gian trung {0} la {1} phut", soba.getName(), soba.thoiGianTrunMi());
}