[Solved] What will be the output of this Kotlin code?val list = listOf("a", "b", "c") // list.add("d") println(list.size)Note: The add() line is commented out. | Kotlin

Kotlin - Collections Fundamentals

What will be the output of this Kotlin code?

val list = listOf("a", "b", "c")
// list.add("d")
println(list.size)

Note: The add() line is commented out.

A4

B3

CCompilation error

DRuntime exception

Step-by-Step Solution

Solution:

Step 1: Understand listOf() and commented code
listOf() creates an immutable list; add() is commented out, so no change.
Step 2: Check list size
Original list has 3 elements; size remains 3.
Final Answer:
3 -> Option B
Quick Check:
Immutable list size unchanged = 3 [OK]

Quick Trick: Immutable list size stays same; add() not allowed [OK]

Common Mistakes:

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