Función GetInt Ejercicio C# - Curso de Programación C# (C Sharp)

using System;
public class exercise116
{
    public static int getInt(string text, int low, int high)
    {
        int answer;
        do
        {
            Console.Write(text);
            answer = Convert.ToInt32(Console.ReadLine());
            if ((answer > high))
                Console.WriteLine("Not a valid answer. Must be no more than 150");
            if ((answer < low))
                Console.WriteLine("Not a valid answer. Must be no less than 0");
        } while ((answer < low) || (answer > high));
        return answer;
    }


    static void Main()
    {
        int age = getInt("Enter your age:  ", 0, 150);
        Console.WriteLine("The age is {0}", age);
    }
}