Exception handling query

harish reddy

8y804Learn iOS Programming

Pls find the attachment.

4 Replies

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Vikas Gupta8y ago
Accepted answer
You can create your custom exception

Try this in your first example..

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ConsoleApplication1

{

class Program

{

   static void Main(string[] args)

   {

      int start = int.Parse(Console.ReadLine());

      int end = int.Parse(Console.ReadLine());

      ReadNumber(start, end);

   }

   public static void ReadNumber(int start, int end)

   {

      Console.WriteLine("Enter the value");

      try

      {

         int input = int.Parse(Console.ReadLine());

         if (input <= start || input >= end)

         {

            throw new Invalidnumberexception("No is invalid");

         }

      }

      catch (FormatException stringmessage)

      {

         Console.WriteLine(stringmessage.Message);

         Console.WriteLine("This is the standard message");

      }

   }

      public class Invalidnumberexception : ApplicationException

      {

         public Invalidnumberexception(string msg) : base(msg) { }

      }

   }

}
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Joginder Banger8y ago
Hi Harish,

as per my understanding right side is the best way, I check you can set the custom message and number also. Suppose you have clear mention everything in custom message every buddy understand what is the issue. for example you have set the message, in coding way handle is very esay. you can ask again the clint enter your valid number. please let me know if any concern.
0
Manav Pandya8y ago
Hello @Harish

Well there is no single or two way to do this , case or scenario may be different based on situations

I have worked with Right-side part of a code that you have attached

So you can go with Part-2 easily

For more reference you can search for microsoft docs , so that you can get complete idea based on which type of exception you can use

You can follow link for understanding different exception handling mechanism :

1 - Best Practice for Exception handling

https://docs.microsoft.com/en-us/dotnet/standard/exceptions/best-practices-for-exceptions

2 - Complete overview on Exception handling

https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/exceptions/

Thanks
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harish reddy8y ago
Thanks Manav.
But can you little explain onthe code that i attached. Espeically about the custom exception that i gave in two different ways. Which is right and wrong? Each website says it in a different ways. Hence posted.
0