This method should assign a random decimal number (in the range 0 to Int32.Max- Value) to decimal decNumber. Find the error(s) in the following code.

 void RandomDecimal()

 {

 decimal decNumber;

 Random objRandom = new Random();



 decNumber = objRandom.NextDouble();

 lblDisplay.Text = Convert.ToString( decNumber );



 } // end method RandomDecimal

Random objects can produce ints and doubles only; this will yield only an int ran-

dom number. [Note: There is no way to have the Random class generate a decimal random value, so the solution is a bit contrived. The closest approximation is to use NextDouble.]

The result also must be multiplied by Int32.MaxValue to achieve the correct range of values. The complete incorrect code reads:

 // RandomNumber.cs (Incorrect)





 using System;


 using System.Drawing;


 using System.Collections;


 using System.ComponentModel;


 using System.Windows.Forms;


 using System.Data;





 namespace RandomNumber


 {


 /// 



 /// Summary description for FrmRandomNumber.


 /// 



 public class FrmRandomNumber : System.Windows.Forms.Form


 {


 private System.Windows.Forms.Label lblDisplay;


 private System.Windows.Forms.Label lblRandom;


 /// 



 /// Required designer variable.


 // RandomNumber.cs (Incorrect)





 using System;


 using System.Drawing;


 using System.Collections;


 using System.ComponentModel;


 using System.Windows.Forms;


 using System.Data;





 namespace RandomNumber


 {


 /// 



 /// Summary description for FrmRandomNumber.


 /// 



 public class FrmRandomNumber : System.Windows.Forms.Form


 {


 private System.Windows.Forms.Label lblDisplay;


 private System.Windows.Forms.Label lblRandom;


 /// 



 /// Required designer variable.


decNumber = objRandom.NextDouble();


 lblDisplay.Text = Convert.ToString( decNumber );





 } // end method RandomDecimal





 } // end class FrmRandomNumber


 }

The complete corrected code should read:

 // RandomNumber.cs (Correct)





 using System;


 using System.Drawing;


 using System.Collections;


 using System.ComponentModel;


 using System.Windows.Forms;


 using System.Data;





 namespace RandomNumber


 {


 /// 



 /// Summary description for FrmRandomNumber.


 /// 



 public class FrmRandomNumber : System.Windows.Forms.Form


 {


 private System.Windows.Forms.Label lblDisplay;


 private System.Windows.Forms.Label lblRandom;


 /// 



 /// Required designer variable.


 /// 



 private System.ComponentModel.Container components = null;





 public FrmRandomNumber()


 {


 //


 // 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 FrmRandomNumber() );


 }





 // calls the RandomDecimal helper method


 private void FrmRandomNumber_Load(


 object sender, System.EventArgs e )


 {


 RandomDecimal();





 } // end method FrmRandomNumber_Load





 // generates a random decimal which it then displays


 void RandomDecimal()


 {


 decimal decNumber;


 Random objRandom = new Random();


decNumber = ( Int32.MaxValue *


Convert.ToDecimal( objRandom.NextDouble() ) );


 lblDisplay.Text = Convert.ToString( decNumber );





 } // end method RandomDecimal





 } // end class FrmRandomNumber


 }