Kotlin - Loops and Ranges
How can you use a for loop to create a new list of squares from an existing list of integers in Kotlin?
How can you use a for loop to create a new list of squares from an existing list of integers in Kotlin?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Initialize a mutable list to store results
Use mutableListOf() to create an empty list that can be added to. Step 2: Loop through numbers and add squares
Inside the loop, calculate n * n and add to squares list.Final Answer:
val squares = mutableListOf(); for (n in numbers) { squares.add(n * n) } -> Option BQuick Check:
Use mutable list and add inside loop [OK]
Quick Trick: Use mutableListOf and add() inside for loop [OK]
Common Mistakes:
MISTAKES- Using immutable list and trying to add
- Reinitializing list inside loop
- Using forEach which returns Unit
Master "Loops and Ranges" in Kotlin
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