static public void RoleChoice(int?roleId, int?userId)
{
if (roleId == 1)
{
AdminView.AdminMenuView((int)userId);
}
else if (roleId == 2)
{
TrainerView.TrainerMenuView((int)userId);
}
else if (roleId == 3)
{
StudentView.StudentMenuView((int)userId);
}
else
{
Console.WriteLine("Goodbye!");
}
}
