Rethrowing Exceptions

In this problem, you will implement the processNumber(String input) method. It converts the input string to an integer and returns it on success. When a NumberFormatException occurs, it prints "[LOG] Parse error occurred" and rethrows the same exception.

Learning Objective: Understand how to catch an exception, log it, then rethrow to delegate handling to a higher-level caller

Overview

After catching an exception for logging or partial processing, you can rethrow it using the throw statement. This enables both logging in intermediate methods and full handling at higher levels.

Method Signature

static int processNumber(String input)

Specifications

• Convert input to an integer using Integer.parseInt()
• Return the integer value on success
• On NumberFormatException, print "[LOG] Parse error occurred" and rethrow the same exception with throw e

Call Examples

processNumber("42")  → 42 (normal)
processNumber("abc") → NumberFormatException (rethrown)