What does the following code do? The first code listing contains the declaration of the Shape class. Each Shape object represents a closed shape with a number of sides. The second code listing contains a method (Mystery) created by a client of the Shape class. What does this method do?

What will be an ideal response?

// Shapes.cs





using System;


using System.Drawing;


using System.Collections;


using System.ComponentModel;


using System.Windows.Forms;


using System.Data;





namespace Shapes


{


/// 



/// Summary description for FrmShapes.


/// 



public class FrmShapes : System.Windows.Forms.Form


{


private System.Windows.Forms.Label lblFiveSidesOut;


private System.Windows.Forms.Label lblFourSidesOut;


private System.Windows.Forms.Label lblThreeSidesOut;


private System.Windows.Forms.Label lblTwoSidesOut;


private System.Windows.Forms.Label lblFiveSides;


private System.Windows.Forms.Label lblFourSides;


private System.Windows.Forms.Label lblThreeSides;


private System.Windows.Forms.Label lblTwoSides;


/// 



/// Required designer variable.


/// 



private System.ComponentModel.Container components = null;





public FrmShapes()


{


//


// Required for Windows Form Designer support


//


InitializeComponent();





//


// TODO: Add any constructor code after InitializeComponent


// call


//


}





/// 



/// Clean up any resources being used.


/// 



protected override void Dispose( bool disposing )


{


if( disposing )


{


if (components != null)


{


components.Dispose();


}


}


base.Dispose( disposing );


}





// Windows Form Designer generated code


/// 



/// The main entry point for the application.


/// 



[STAThread]


static void Main()


{


Application.Run( new FrmShapes() );


}





// calls Mystery to and prints the results


private void FrmShapes_Load(


object sender, System.EventArgs e )


{


Shape objLine = new Shape( 2 );


Shape objTriangle = new Shape( 3 );


Shape objSquare = new Shape( 4 );


Shape objPoly = new Shape( 5 );





lblTwoSidesOut.Text = Mystery( objLine );


lblThreeSidesOut.Text = Mystery( objTriangle );


lblFourSidesOut.Text = Mystery( objSquare );


lblFiveSidesOut.Text = Mystery( objPoly );





} // end method FrmShapes_Load





// returns the name of a shape based on its number of sides


public string Mystery( Shape objShape )


{


string strShape;


switch ( objShape.Side )


{


case 0:


case 1:


case 2: strShape = "Not a Shape";


break;


case 3: strShape = "Triangle";


break;


case 4: strShape = "Square";


break;


default: strShape = "Polygon";


break;


}


return strShape;


} // end method Mystery


} // end class FrmShapes


}