[Solved] Find the error in this Kotlin code snippet:val y = 7 val output = when { y == 5 -> "Five" y == 7 -> "Seven" else "Unknown" } | Kotlin

Kotlin - Control Flow as Expressions

Find the error in this Kotlin code snippet:

val y = 7
val output = when {
  y == 5 -> "Five"
  y == 7 -> "Seven"
  else "Unknown"
}

AVariable y is not declared

BMissing parentheses after when

CUsing semicolons instead of arrows

DMissing arrow (->) in else branch

Step-by-Step Solution

Solution:

Step 1: Check syntax of when branches
Each branch must have an arrow (->) before the value; else branch is missing it.
Step 2: Confirm other syntax parts
Parentheses are not needed when using conditions; variable y is declared.
Final Answer:
Missing arrow (->) in else branch -> Option D
Quick Check:
All when branches need arrows [OK]

Quick Trick: Every when branch needs an arrow (->) before value [OK]

Common Mistakes:

MISTAKES

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