using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Drawing;

using System.Windows.Forms;

​

​

namespace BC180406500

​

{

    interface GPA

    {

        void getinput();

        void calculate(object sender, EventArgs ea);

    }

    class Student : Form, GPA

    {

        int sub; double gpa,cgpa; int ch = 3;

        public Student()

        {

            Button btnzahi = new Button();

            btnzahi.Parent = this;

            btnzahi.Text = "Calculate";

            btnzahi.Location = new Point(

            (ClientSize.Width - btnzahi.Width) / 2,

            (ClientSize.Height - btnzahi.Height) /2);

​

            getinput(); // function call

​

            btnzahi.Click += new EventHandler(calculate);

​

        }

​

        public void getinput()

        {

            Console.WriteLine("Enter the Number of Subject");

            sub = Convert.ToInt32(Console.ReadLine());

            if (sub < 1)

            {

                sub += 3;

            }

            else if (sub < 2)

            {

                sub += 2;

            }

            else if (sub < 3)

            {

                sub += 1;

            }

            for (int i = 1; i <= sub; i++)

            {

                Console.WriteLine("Enter the GPA of the Subject:" + i);

                gpa = Convert.ToDouble(Console.ReadLine());

                cgpa = cgpa + gpa;

​

            }

            Console.WriteLine("Total Credit Hours:" + sub * ch);

​

        }

        public void calculate(object sender, EventArgs ea)

        {

            MessageBox.Show("CGPA:" + (cgpa/sub).ToString("0.0"), "CGPA", MessageBoxButtons.OK,MessageBoxIcon.Information);

        }

​

                static void Main(string[] args)

        {

            Console.WriteLine("Enter Your VUID");

            string vuid = Console.ReadLine();

            Application.Run(new Student());

        }

    }

}