1 // Student: Pat Moss www.patmoss.com/cis162ad/
  2 // Instructor: Dave Hammer http://members.cox.net/dwhammer/
  3 
  4 // CIS162AD -- C Sharp (C#) -- Section 5832
  5 // Professor: Dave Hammer  dwhammer@cox.net
  6 // http://members.cox.net/dwhammer/
  7 // Student:   Pat Moss patmoss@patmoss.com
  8 // http://www.patmoss.com/cis162ad/
  9 
 10 // Quiz #1
 11 // III. Programming Exercise
 12 // Write a class named Circle with fields named radius, area, and
 13 // diameter. Include a constructor that sets the radius to 1. Also
 14 // include public methods named SetRadius(), GetDiam(), GetArea(),
 15 // ComputeDiameter() which computes a circle's diameter, and
 16 // ComputeArea() which computes a circle's area. (The diameter of a
 17 // circle is twice the radius. The area is Pi (3.14) times the square
 18 // of the radius.) Turn in your source code for this program.
 19 
 20 // Program Name: CircleApp.cs  Rev. 01  02-08-2006  by pat moss
 21 // Class Name:   Circle.cs
 22 // Textbook: Visual C# .NET Programming, Barbara Doyle, 0619159979
 23 
 24 using System;
 25 namespace circlecalculator
 26 {
 27   public class circlecalulatorapp
 28   {
 29     public static void Main()
 30     {
 31       circlecalculator Circle = new circlecalculator();
 32       bool moreToDo = true;
 33       double inpRadius = 0.0;
 34       double circDiam = 0.0;
 35       double circArea = 0.0;
 36 
 37       DisplayInstructions();
 38 
 39       while (moreToDo == true)
 40       {
 41         Console.Write("\nEnter a circle radius value: ");
 42         inpRadius = Convert.ToDouble(Console.ReadLine());
 43 
 44         if (inpRadius > 0.0)
 45         {
 46           Circle.SetRadius(inpRadius);
 47 
 48           circDiam = Circle.GetDiam();
 49           circArea = Circle.GetArea();
 50 
 51           Console.WriteLine("The circle radius is {0:F2}", inpRadius);
 52           Console.WriteLine("The circle diameter is {0:F2}", circDiam);
 53           Console.WriteLine("The circle area is {0:F2}", circArea);
 54         }
 55         else
 56         {
 57           Console.WriteLine("\nCircle application -- All done...");
 58           moreToDo = false;
 59         }
 60 
 61       }
 62     }
 63 
 64     static void DisplayInstructions()
 65     {
 66       Console.WriteLine("Circle application by Student: Pat Moss  Instructor: Dave Hammer\n");
 67       Console.WriteLine("CIS162AD  C#  Quiz #1, III. Programming Exercise\n");
 68       Console.WriteLine("CircleApp.cs  Rev. 01  Feb. 8, 2006\n");
 69       Console.WriteLine("User Instructions:");
 70       Console.WriteLine("Enter various circle radius values, one at a time, and press Enter.");
 71       Console.WriteLine("Then the corresponding diameter and area values will be displayed.");
 72       Console.WriteLine("Note: All values are rounded to two decimal places.");
 73       Console.WriteLine("Enter a zero or negative radius value to quit.");
 74     }
 75   }
 76 }