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C#

Posted by richardp
richardp
1,215 Points

C# Try/Catch Question for C# Objects course

Can anyone provide me with the answer to the following Code Challenge. I'm pulling my hair out because of it.

https://teamtreehouse.com/library/c-objects/inheritance/catching-exceptions-2

Many thanks in advance!

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

May I suggest that you temporarily skip this challenge and continue on to the end of this stage, and then return and try the challenge again. The additional instruction and examples in the next few lessons should make what's needed for this task much clearer.

richardp
richardp
1,215 Points

Hi Steven,

Thanks for your answer. I completed this stage, but this hasn't helped me resolve the question. The bit that's confusing me is this element of the task: "wrap the testing logic with a try/catch".

Using the below as a standard Try/Catch template, how do I implement if (value < 0 || value > 20) in place of DoSomething()?

    try
    {
        DoSomething();
    }
    catch(System.Exception ex)
    {
    }

i.e. how do I make this work?:

    try
    {
        if (value < 0 || value > 20) {
        ...
        }
    }
    catch(System.Exception ex)
    {
    }

Many thanks,

Richard

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Looks like you were almost there. The "wrap" suggestion means put the entire logic inside the "try" block:

try {
    if (value < 0 || value > 20)
    {
        throw new System.Exception();
    }
    Console.WriteLine(string.Format("You entered {0}",value));
}
catch(System.Exception ex)
{
    // then you just need to issue the error message here
}
richardp
richardp
1,215 Points
richardp
richardp
1,215 Points

Ah! I had assumed it meant for us to remove the throw new System.Exception(); line during the 'wrapping', hence my confusion on how to actually force it!

Many thanks!