How will you suppress error Message in Try catch block ?

Question

Sam Hobbs · Answer

Yes the question is vague. Probably the actual question was more specific.

Vulpes · Answer

Yeah, interviewers tend to irritate me. Sometimes they don't know what they're talking about as they're not programmers themselves, or they're trying to catch you out with some trick question that has an obscure answer which no-one would even dream of using in practice!

Suthish Nair · Answer

Same thing happens to me once :). I asked what you mean by suppress the exception. I was not able to answer what he wants. But after the session i asked him about this. He said, how to show user defined messages when exception occurs. I got confused whats the relation that. Anyway, Still am not sure that was the answer for that. But taut of sharing it here. Suppress also means forcibly put an end to.

Vulpes · Answer

Well, I'm sorry to be pedantic but to suppress means "to keep from public knowledge" - no more, no less. There's no implication that anything should or should not be shown in its place. If they'd asked me that question at an interview and told me my answer was wrong, that's exactly what I'd have told them!

Suthish Nair · Answer

Now days most of the people ask this question to candidates. Suppress means how to avoid system generated errors and show user defined error messages. For example, this not accurate but will give you an idea: static void Main(string[] args) { try { int x = 1; int y = 0; int z = x / y; } catch (Exception) { CatchErrors err = new CatchErrors(); //Console.WriteLine(err.Message); Console.WriteLine(err.ShowErrors()); Console.ReadLine(); } } public class CatchErrors : Exception { public CatchErrors() { } public void GetErrors() { throw new Exception(); } public string ShowErrors() { return "Hello, You can't catch me out with that one!"; } }

Vulpes · Answer

It may be that I'm misunderstanding the question but the whole point of a try/catch block is to prevent an application from ending with an error message if the exception can be handled in some other way. As far as the 'catch' clause is concerned you don't need to display a message to the user but can simply handle the exception 'silently'.

Manikavelu Velayutham · Answer

Are you sure about this answer Vulpes. Because my friend tried the same answer when he got interviewed. But Interviewer argued there is some other way like that. I too searched in google, but didnt get a valid point.

Vulpes · Answer

Well the idea is that, if an error occurs in the 'try' block, then the exception is caught in the 'catch' block. This then enables you to do something about it without the application blowing up. For example: try { int x = 1; int y = 0; int z = x/y; } catch (DivideByZeroException) { MessageBox.Show("You can't catch me out with that one!"); }