क्लास और ऑब्जेक्ट

using System;

class Counter
{
    public int Value { get; private set; }
    public void Increment() => Value++;
}

class Program
{
    static void Main()
    {
        var counter = new Counter();
        counter.Increment();
        counter.Increment();
        Console.WriteLine(counter.Value);
    }
}