Using Multiple Catch Blocks

In this problem, you will implement a convertToInt method that converts a string to an integer, and a getElement method that retrieves an element from a string array. Each method throws NumberFormatException or ArrayIndexOutOfBoundsException depending on the arguments.

Learning Objective: Understand how to handle different exception types individually using multiple catch blocks

Overview

In a try-catch statement, multiple catch blocks can be placed sequentially to handle different exception types individually. More specific exception types must be written first.

Methods to Implement

convertToInt(String s) → int

• Convert string s to an integer and return it
• Throw NumberFormatException if conversion is not possible

getElement(String[] arr, int index) → String

• Return the element at index in array arr
• Throw ArrayIndexOutOfBoundsException if the index is out of range

Examples

convertToInt("10")  // → 10
convertToInt("abc") // → NumberFormatException
getElement(new String[]{"10","abc","20"}, 1) // → "abc"
getElement(new String[]{"10","abc","20"}, 5) // → ArrayIndexOutOfBoundsException