Given val nums = listOf(1, 2, 3, 4, 5, 6), which Kotlin code correctly uses forEach to print only the even numbers?

hard📝 Application Q8 of 15

Kotlin - Collections Fundamentals

Given val nums = listOf(1, 2, 3, 4, 5, 6), which Kotlin code correctly uses forEach to print only the even numbers?

Anums.forEach { println(it % 2 == 0) }

Bnums.forEach { if (it % 2 == 0) println(it) }

Cnums.forEach { println(it) if (it % 2 == 0) }

Dnums.forEach { if (it / 2 == 0) println(it) }

Step-by-Step Solution

Solution:

Step 1: Understand the requirement
Print only even numbers from the list.
Step 2: Analyze options
nums.forEach { if (it % 2 == 0) println(it) } uses a conditional inside forEach to print only if the number is even.
Step 3: Check other options
nums.forEach { println(it % 2 == 0) } prints true/false for each element, not the number. nums.forEach { println(it) if (it % 2 == 0) } has invalid syntax. nums.forEach { if (it / 2 == 0) println(it) } uses incorrect condition.
Final Answer:
nums.forEach { if (it % 2 == 0) println(it) } -> Option B
Quick Check:
Use if inside forEach to filter elements [OK]

Quick Trick: Use if condition inside forEach to filter [OK]

Common Mistakes:

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