What does this mean? 👉 Catch(indexOutofRangeException e)

Question

Explain what that line does help?

Answer 1

Thank u soo much

Answer 2

If you are workin with arryas there is a range fixed not changing if you go below or above that range you will get this exception

Ex:
Char[] arr = new char[3];//3 is the Length of the array (start from 0 to 2)
arr[4] = 'A';//Exception indexOutOfRange

Because 4 is above the range (0,1,2)

Answer 3

The IndexOutOfRangeException is a common exception in C# that occurs when trying to access an array or collection using an index that is outside the valid range. In C#, arrays and collections are zero-based, meaning the index starts from 0 and goes up to the length of the array minus one.

An index is invalid when it's lower than the collection's lower bound or greater than or equal to the number of elements it contains. Indexing an empty list will always throw an exception. Use a method like Add to append the item to the end of the list, or Insert to place the item in the middle of the list somewhere, etc. You cannot index into a C# list if that offset doesn't exist. IndexOutOfRangeException exception is thrown as a result of developer error. Instead of handling the exception, you should diagnose the cause of the error and correct your code.

It's worth noting that using the appropriate looping constructs, such as for or foreach loops, can help you avoid IndexOutOfRangeExceptions by automatically handling the iteration over the elements within the valid range of the array or collection.

http://csharp.net-informations.com/collection/list.htm