using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            string myname = "Dana";
            int i = 3;
            i = i * 3;
            double d = Math.PI / 2;
            MessageBox.Show("Name = " + myname);
            MessageBox.Show("i = " + i);
            MessageBox.Show("d = " + d);
        }
    }
}