[Solved] What will be printed by the following Kotlin code?val temperature = 15 val description = when { temperature > 30 -> "Hot" temperature in 15..30 -> "Warm" temperature in 0..... | Kotlin

Kotlin - Control Flow as Expressions

What will be printed by the following Kotlin code?

val temperature = 15
val description = when {
  temperature > 30 -> "Hot"
  temperature in 15..30 -> "Warm"
  temperature in 0..14 -> "Cold"
  else -> "Freezing"
}
println(description)

AHot

BWarm

CCold

DFreezing

Step-by-Step Solution

Solution:

Step 1: Evaluate conditions in order
temperature is 15, check each condition:
Step 2: Check ranges
15 is not > 30, but is in 15..30 range, so "Warm" matches.
Final Answer:
Warm -> Option B
Quick Check:
Check which range 15 falls into [OK]

Quick Trick: Check conditions top to bottom, first match returns value [OK]

Common Mistakes:

MISTAKES

Assuming 15 is 'Cold' instead of 'Warm'
Ignoring range checks order
Missing else branch causing errors

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More Kotlin Quizzes

What will be printed by the following Kotlin code?

Step 1: Evaluate conditions in order

Step 2: Check ranges

Final Answer:

Quick Check:

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