Can you explain try-catch-finally in C# with examples?

Can you explain try-catch-finally in C# with examples?

Sure! In C#, the try-catch-finally block is used for exception handling. The 'try' block contains code that may throw an exception, the 'catch' block handles the exception, and the 'finally' block executes code after the try and catch blocks, regardless of whether an exception occurred.

Can you give me a simple example?

Absolutely! Here's a simple example:

try {
    int[] numbers = {1, 2, 3};
    Console.WriteLine(numbers[5]); // This will throw an exception
}
catch (IndexOutOfRangeException e) {
    Console.WriteLine("Index was out of range: " + e.Message);
}
finally {
    Console.WriteLine("This will always execute.");
}

What happens if there's no exception?

If there's no exception, the code in the 'catch' block is skipped, and the 'finally' block will still execute. It's a great place for cleanup code.

Can I have multiple catch blocks?

Yes, you can have multiple catch blocks to handle different types of exceptions separately. Just make sure they are ordered from most specific to least specific.