What is the importance of finally block in exception handling?

The finally block in exception handling is a crucial construct that ensures the execution of important code segments irrespective of whether an exception occurs or not. Its primary importance lies in its ability to provide a reliable way to clean up resources that may have been allocated during the execution of a try block, such as file streams, database connections, or network sockets.

Here are the key points that highlight the importance of the finally block in exception handling:

1. Guaranteed Execution: The finally block is executed after the try and catch blocks, regardless of whether an exception was thrown or caught. This means that even if an exception occurs and is handled, the finally block will still run[1][2][3][4][5].

2. Resource Management: It is often used to close or release resources that were opened or acquired in the try block. This is important because it prevents resource leaks, which can lead to performance issues and other bugs[3][6].

3. Avoiding Code Bypass: The finally block allows programmers to avoid having cleanup code accidentally bypassed by a return, continue, or break statement within a try or catch block. This ensures that the necessary cleanup is always performed[6].

4. Program Robustness: Using a finally block can make the program more robust and stable by ensuring that necessary cleanup actions are taken, which might otherwise be missed if an exception occurs unexpectedly[2][3].

5. Exception Handling and Cleanup Separation: It allows for a clear separation between exception handling code (in the catch block) and cleanup code (in the finally block), making the code more readable and maintainable[3].

6. Handling Uncaught Exceptions: The finally block will execute even if an exception is no...