point2.cs

this is a good book for the visual c#

// Fig. 9.9: Point2.cs
// Point2 class contains an x-y coordinate pair as protected data.

using System;

namespace CircleTest3
{
   // Point2 class definition implicitly inherits from Object
   public class Point2
   {
      // point coordinate
      protected int x, y;

      // default constructor
      public Point2()
      {
         // implicit call to Object constructor occurs here
      }

      // constructor
      public Point2( int xValue, int yValue )
      {
         // implicit call to Object constructor occurs here
         X = xValue;
         Y = yValue;
      }

      // property X
      public int X
      {
         get
         {
            return x;
         }

         set
         {
            x = value;  // no need for validation
         }

      } // end property X

      // property Y
      public int Y
      {
         get
         {
            return y;
         }

         set
         {
            y = value;  // no need for validation
         }

      } // end property Y

      // return string representation of Point2
      public override string ToString()
      {
         return "[" + x + ", " + y + "]";
      }

   } // end class Point2
}

/*
 **************************************************************************
 * (C) Copyright 2002 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 **************************************************************************
*/