static void Main(string[] args)
        {
            Student s1 = new Student();

            s1.Marks2 = 100;
            s1.CalculateNewPercent();

            Console.WriteLine("{0},{1},{2},{3}", s1.Name, s1.Marks1.ToString(), s1.Marks2.ToString(), s1.Percent.ToString());
            Student s2 = new Student("Swati", 0, 80);

            Console.WriteLine("{0},{1},{2},{3}", s2.Name, s2.Marks1.ToString(), s2.Marks2.ToString(), s2.Percent);
            Console.WriteLine();



            Console.ReadKey();
        }
        static void Main(string[] args)
        {
            Student s1 = new Student();
            s1.Marks2 = 100;
            s1.CalculateNewPercent();

            Console.WriteLine("{0},{1},{2},{3}",s1.Name, s1.Marks1.ToString(), s1.Marks2.ToString(), s1.Percent.ToString());
            Student s2 = new Student("Swati", 0, 80);
            Console.WriteLine("{0},{1},{2},{3}", s2.Name, s2.Marks1.ToString(), s2.Marks2.ToString(), s2.Percent);
            Console.WriteLine();

            Console.ReadKey();
        }