[Solved] Identify the error in the following Kotlin code snippet:val arr = arrayOf(1, 2, 3) arr[3] = 4 println(arr.joinToString()) | Kotlin

Kotlin - Collections Fundamentals

Identify the error in the following Kotlin code snippet:

val arr = arrayOf(1, 2, 3)
arr[3] = 4
println(arr.joinToString())

Aarr is immutable, cannot assign new value

BNo error, output is '1, 2, 3, 4'

CSyntax error in array declaration

DIndexOutOfBoundsException at arr[3] assignment

Step-by-Step Solution

Solution:

Step 1: Check array size and indexing
The array has 3 elements with indices 0, 1, 2. Accessing index 3 is out of bounds.
Step 2: Understand runtime behavior
Assigning arr[3] = 4 causes an IndexOutOfBoundsException at runtime.
Final Answer:
IndexOutOfBoundsException at arr[3] assignment -> Option D
Quick Check:
Array indices must be within 0 to size-1 [OK]

Quick Trick: Array indices go from 0 to size-1 only [OK]

Common Mistakes:

MISTAKES

Master "Collections Fundamentals" in Kotlin

9 interactive learning modes - each teaches the same concept differently

More Kotlin Quizzes

Identify the error in the following Kotlin code snippet: