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What is the main purpose of using when without an argument in Kotlin?

easy📝 Conceptual Q1 of 15
Kotlin - Control Flow as Expressions
What is the main purpose of using when without an argument in Kotlin?
ATo compare a single value against multiple constants
BTo evaluate multiple boolean conditions sequentially
CTo create a loop that runs until a condition is met
DTo declare a variable with multiple possible types
Step-by-Step Solution
Solution:
  1. Step 1: Understand the structure of when without argument

    It works like an if-else chain checking boolean expressions one by one.
  2. Step 2: Identify its purpose

    It evaluates conditions sequentially and executes the first true branch.
  3. Final Answer:

    To evaluate multiple boolean conditions sequentially -> Option B
  4. Quick Check:

    when without argument = evaluates boolean conditions [OK]
Quick Trick: Use when without argument to replace if-else chains [OK]
Common Mistakes:
MISTAKES
  • Thinking it compares a single value like when with argument
  • Confusing it with loops or variable declarations

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