[Solved] What will be the output of this Kotlin code? val a: Int = 7 val b: Double = 3.5 val c: Double = a + b println(c) | Kotlin

Kotlin - Data Types

What will be the output of this Kotlin code?

val a: Int = 7
val b: Double = 3.5
val c: Double = a + b
println(c)

A7.0

B10

CError: Type mismatch

D10.5

Step-by-Step Solution

Solution:

Step 1: Understand type conversion in expressions
In Kotlin, when adding Int and Double, Int is converted to Double automatically in expressions.
Step 2: Calculate the sum
7 (Int) + 3.5 (Double) = 10.5 (Double). So, c will be 10.5 and printed.
Final Answer:
10.5 -> Option D
Quick Check:
Mixed numeric addition converts Int to Double [OK]

Quick Trick: In expressions, Int converts to Double automatically [OK]

Common Mistakes:

MISTAKES

Master "Data Types" in Kotlin

9 interactive learning modes - each teaches the same concept differently

More Kotlin Quizzes

What will be the output of this Kotlin code?