5 Exception Handling Secrets In .NET — Junior To Senior
The Software Interview Question that you should be aware of!
Exception handling is a crucial aspect of software development that allows you to manage and recover from unexpected or exceptional situations that can occur during program execution. These exceptional situations are typically errors or unforeseen conditions that disrupt the normal flow of a program. Exception handling helps improve the robustness and reliability of your code by providing a structured way to deal with such situations.
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Exception Handling
All of the examples will be in the context of .NET. Keep in mind, however, that exceptions are existing for every single language and it will be very beneficial for any programmer to be acquainted with as many details as possible.
In C#, as we mentioned, there are four main keywords used for exception handling:
- try: This keyword marks a block of code where you expect exceptions to occur. It encloses the code that might cause an exception. If an exception occurs within the try block, the runtime will immediately jump to the appropriate catch block (if available) to handle the exception.
- catch: The catch block follows the try block and specifies how to handle different types of exceptions. It contains code that is executed when an exception of a particular type is thrown within the associated try block. You can have multiple catch blocks to handle different types of exceptions.
- finally: The finally block is used to contain code that needs to be executed regardless of whether an exception was thrown or not. It is often used for cleanup operations such as closing files or releasing resources. The code in the finally block will execute even if there is a return statement in the try or catch block, or if an exception is not caught.
- throw: The throw keyword is used to explicitly raise an exception. You can throw both built-in and custom exceptions. Throwing an exception allows you to signal that an error or exceptional condition has occurred and…