Chapter 3.6, Problem 3.34CP

Explanation of Solution

Given statement:

In the below program, the “double” variable named “millimeter” stores certain value and displays in message box using “ToString” method.

Complete program:

//Include libraries

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

//Define namespace

namespace WindowsFormsApp4

{

    //Define class

    public partial class Form1 : Form

    {

        //Define Form1 method

        public Form1()

        {

            //Declare and initialize variable

            double millimeters=12...