Why should we always close resources in a `finally` block or use try-with-resources?

Closing resources like files or database connections is crucial to avoid resource leaks, which can lead to performance issues. If resources aren’t closed properly, they may remain open and consume system resources.

• Finally block: Ensures that resources are closed even if an exception occurs during execution.
• Try-with-resources: Automatically closes resources when the try block finishes execution, without needing a finally block.

Using either method ensures proper cleanup of resources, preventing memory leaks and other issues.