[Solved] How can you use repeat to create a list of squares of numbers from 0 to 4 in Kotlin? — Ans: val squares = mutableListOf(); repeat(5) { squares.add(it * it) } | Kotlin

Kotlin - Loops and Ranges

How can you use repeat to create a list of squares of numbers from 0 to 4 in Kotlin?

Aval squares = mutableListOf<Int>(); repeat(5) { squares.add(it * it) }

Bval squares = repeat(5) { it * it }

Cval squares = List(5) { repeat(it * it) }

Dval squares = repeat(5) { println(it * it) }

Step-by-Step Solution

Solution:

Step 1: Understand repeat usage for list building
The repeat function runs code multiple times but does not return a list itself.
Step 2: Check each option's approach
val squares = mutableListOf(); repeat(5) { squares.add(it * it) } creates a mutable list and adds squares inside repeat, which works. val squares = repeat(5) { it * it } tries to assign repeat's result directly, which is Unit (no list). val squares = List(5) { repeat(it * it) } misuses List and repeat. val squares = repeat(5) { println(it * it) } only prints values, no list created.
Final Answer:
val squares = mutableListOf(); repeat(5) { squares.add(it * it) } -> Option A
Quick Check:
repeat + add to list = correct list [OK]

Quick Trick: Use repeat to add items to a mutable list [OK]

Common Mistakes:

MISTAKES

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How can you use repeat to create a list of squares of numbers from 0 to 4 in Kotlin?