using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

         var studentA = new Student() { ID = 1, Name = "John Doe", Program = "BCS", Year = 2020, GPA = 2.75F };

            var studentB = new Student() { ID = 2, Name = "Jane Doe", Program = "BCS", Year = 2020, GPA = 3.4F };

            var studentC = new Student() { ID = 1, Name = "John Jane", Program = "BCS", Year = 2019, GPA = 2.71F };

​

            var AtoB = studentA.Equals(studentB);

            var AtoC = studentA.Equals(studentC);

​

            Console.WriteLine("Student A is equal to Student B = {0},AtoB");

            Console.WriteLine("Student A is equal to Student C ={0}, AtoC");

​

    }

    public class Student : IEquatable<Student>

    {

        public int ID { get; set; }

        public string Name { get; set; }

        public string Program { get; set; }

        public int Year { get; set; }

        public float GPA { get; set; }

​

        public bool Equals( Student otherStudent)

        {

            return (this.ID == otherStudent.ID);

        }

    }

}