Exception Handling with begin, rescue, and ensure

Exception handling is a mechanism to deal with errors that occur during the execution of a program. In Ruby, the begin, rescue, and ensure keywords provide a structured way to handle these exceptions. The begin block encloses the code that might raise an exception. If an exception occurs, the rescue block catches and handles it. The ensure block, if present, guarantees that its code will always be executed, regardless of whether an exception was raised or not, making it suitable for cleanup operations.