ObjectAndClasses

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ObjectAndClasses
{
    class ObjectAndClasses
    {
        static void Main()
        {
            DateTime peterBirtday = new DateTime(1996, 11, 27);
            DateTime mariaBirthday = new DateTime(1995, 6, 14);
            Console.WriteLine("Peters birhdate {0:d-MM-yyyy}", peterBirtday);
            Console.WriteLine("Marias birthdate {0:d-MM-yyyy}",mariaBirthday);
            DateTime maria18Month = mariaBirthday.AddMonths(18);
            Console.WriteLine("Maria at 18 months:{0:d-MM-yyyy}",maria18Month);
            TimeSpan ageDiff = peterBirtday.Subtract(mariaBirthday);
            Console.WriteLine("Maria older than Peter by {0} days", ageDiff.Days);
        }
    }
}