Throwing Exceptions Exercise

You have to do 2 things.

1. You check if the value is between 0 and 20.
2. If the value is is less than 0 or above 20 than throw an exception, because those values are not correct.

Exceptions are used to tell if something is going wrong. This can happen automatically, e.g. a file doesn't exists and you want to read it or in cases when the programmer decides something is wrong, e.g. a variable has the wrong value or an input is missing.

In the case of the exercise you need this. I usually write pseudo code

// check if the value is below 0 or above 20

if (.. C# code to check "value" variable ...) {

// then ... throw an exception with the text "The value is outside of the range. 0 to 20."

... C# code to throw a generic exception with a message text ...

}

You need to break down your task in little steps and first try to write you "code" in English. Than you can fill the gabs with C# code. I hope this helps.