[Solved] Rewrite the following Kotlin code using expressions to simplify it:var message: String if (temperature > 30) { message = "Hot" } else { message = "Cold" } println(message) | Kotlin

Kotlin - Control Flow as Expressions

Rewrite the following Kotlin code using expressions to simplify it:

var message: String
if (temperature > 30) {
  message = "Hot"
} else {
  message = "Cold"
}
println(message)

Aval message = if (temperature > 30) "Hot" else "Cold" println(message)

Bvar message = if temperature > 30 then "Hot" else "Cold" println(message)

Cval message if (temperature > 30) message = "Hot" else message = "Cold" println(message)

Dprintln(if (temperature > 30) { "Hot" } else { "Cold" })

Step-by-Step Solution

Solution:

Step 1: Use if-expression for assignment
val message = if (temperature > 30) "Hot" else "Cold" println(message) assigns the if-expression result directly to 'message'.
Step 2: Check syntax correctness
var message = if temperature > 30 then "Hot" else "Cold" println(message) uses invalid syntax; C uses statements, not expressions; D prints directly but does not assign.
Final Answer:
val message = if (temperature > 30) "Hot" else "Cold" println(message) -> Option A
Quick Check:
Use if-expression for concise assignment [OK]

Quick Trick: Assign if-expression result directly to variable [OK]

Common Mistakes:

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