Lesson #10

using System;

namespace MyNamespace
{
    class Program
    {
        static void Main()
        {
            MyClass my = new MyClass();
            my.a = 1465;
            my.a = 945;
            Console.WriteLine(my.a);
        }
    }

    class MyClass
    {
        private int myValue;

        public int a
        {
            get
            {
                return myValue;
            }
            set
            {
                if (value > 90)
                    myValue = value;
            }
        }
    }
}