Multi-Catch Basics

In this problem: You will use the multi-catch syntax catch(A | B e) introduced in Java 7 to handle multiple exceptions in a single catch block.

Learning Objective: Understand the syntax and benefits of multi-catch

Overview

Multi-catch allows different exception types to be handled in a single catch block, eliminating duplicate handling code across multiple catch blocks.

Specifications

• Parser class:
  • parse(String input): converts input string to integer
    • If null: throws NullPointerException
    • If non-numeric string: NumberFormatException occurs
    • If valid: returns the converted number
• In Main, test with "42", null, "abc"
• Use multi-catch for NullPointerException | NumberFormatException

Output Format

Parsed: 42
Error: Cannot parse null input
Error: For input string: "abc"