Show name hiding in a derived class

   

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

//
// Hide.cs -- Show name hiding in a derived class
//
//            Compile this program with the following command line:
//                C:>csc Hide.cs
//
namespace nsHide
{
    using System;
    using System.Reflection;
    
    public class Hide
    {
        static public void Main ()
        {
            clsBase Base = new clsBase();
            clsDerived Derived = new clsDerived ();
            Base.x = 42;
            Derived.x = 42;
            Console.WriteLine ("For the base class:");
            Console.WriteLine ("	The type stored in clsBase is " + Base.TypeOf());
            Console.WriteLine ("	MathOp () returns {0,0:F3} for {1}", Base.MathOp(42), 42);
            Console.WriteLine ("
For the derived class:");
            Console.WriteLine ("	The type stored in clsDerived is " + Derived.TypeOf());
            Console.WriteLine ("	MathOp () returns {0,0:F3} for {1}", Derived.MathOp(42), 42);
        }
    }
    class clsBase
    {
        protected int m_x;
        public int x
        {
           get {return (x);}
           set {m_x = value;}
        }
        public double MathOp (int val)
        {
            return (Math.Sqrt ((double) val));
        }
        public string TypeOf ()
        {
            return ("integer");
        }
    }
    class clsDerived : clsBase
    {
        new protected double m_x;
        new public double x
        {
           get {return (x);}
           set {m_x = value;}
        }
        new public double MathOp (int val)
        {
            return ((double) (val * val));
        }
        new public string TypeOf ()
        {
            return ("long");
        }
    }
}