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What is the output? image attached A. 0   B. ArrayIndexOutOfBoundsException   C. 6

What is the output? image attached A. 0   B. ArrayIndexOutOfBoundsException   C. 6

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What is the output? image attached

A. 0
 
B. ArrayIndexOutOfBoundsException
 
C. 6
 
```java int[] myList = new int[5]; System.out.println(myList[myList.length]); ``` ### Explanation This Java snippet creates an array called `myList` that can hold 5 integer elements. Arrays in Java are zero-indexed, meaning the valid indices for this array range from `0` to `4`. The second line attempts to print an element in the `myList` array using `myList[myList.length]`. This will result in an `ArrayIndexOutOfBoundsException` because `myList.length` is `5`, and there is no index `5` in the array. The correct maximum index in this case would be `4`. ### Learning Points 1. **Array Declaration and Initialization:** - The array `myList` is initialized to hold 5 elements of type `int`. 2. **Array Indexing:** - Arrays use zero-based indexing. To access the elements, indices range from `0` to `length - 1`. 3. **Common Mistake:** - Attempting to access elements at the index equal to the array's length leads to an `ArrayIndexOutOfBoundsException`. Understanding this helps prevent common runtime errors associated with array operations in Java.
Transcribed Image Text:```java int[] myList = new int[5]; System.out.println(myList[myList.length]); ``` ### Explanation This Java snippet creates an array called `myList` that can hold 5 integer elements. Arrays in Java are zero-indexed, meaning the valid indices for this array range from `0` to `4`. The second line attempts to print an element in the `myList` array using `myList[myList.length]`. This will result in an `ArrayIndexOutOfBoundsException` because `myList.length` is `5`, and there is no index `5` in the array. The correct maximum index in this case would be `4`. ### Learning Points 1. **Array Declaration and Initialization:** - The array `myList` is initialized to hold 5 elements of type `int`. 2. **Array Indexing:** - Arrays use zero-based indexing. To access the elements, indices range from `0` to `length - 1`. 3. **Common Mistake:** - Attempting to access elements at the index equal to the array's length leads to an `ArrayIndexOutOfBoundsException`. Understanding this helps prevent common runtime errors associated with array operations in Java.
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