Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C#

Posted by mcutz
mcutz
8,063 Points

C# Objects Catching Exceptions - What's wrong with this code?

The questions reads:

In the Program.cs file, write code to check if the value integer is less than 0 or greater than 20. Throw System.Exception if the value is outside of the range.

URL: Challenge

My Answer:

int value = int.Parse(Console.ReadLine());
try
{
    if (value < 0 || value > 20)
    {
        throw new System.Exception();
    }
    Console.WriteLine(string.Format("You entered {0}", value));
}
catch(Exception)
{
    Console.WriteLine("Not within bounds!");
}

Result:

Bummer! Did you throw an exception when the value is less than 0 or greater than 20?

What am I missing here?

Thanks

9 Answers

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

There you go

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

if(value < 0 || value > 20)
{
  throw new System.Exception();
}

Console.WriteLine(string.Format("You entered {0}",value));
anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

When you are on the challenge itself, you click get help and ask your question straight from there and the challenge will get linked :)

mcutz
mcutz
8,063 Points
mcutz
mcutz
8,063 Points

So I don't try to catch it? Ha was way over thinking it!

Thank you very much!

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

Try removing the console.writeline under the if.

I can't attempt the code as you didn't link the challenge.

mcutz
mcutz
8,063 Points
mcutz
mcutz
8,063 Points

Not sure if that was what you had in mind but added the URL of the challenge above the code.

mcutz
mcutz
8,063 Points
mcutz
mcutz
8,063 Points

Ah OK, will remember that for next time, thanks. Don't want to make a duplicate post, so will the URL link I've added above the code help?

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

Yh the question would have mentioned it if needed :)

HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points
HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points 
int value = int.Parse(Console.ReadLine());

if(value < 0 || value > 20)
{
  throw new System.Exception();
}

Console.WriteLine(string.Format("You entered {0}",value));