Print and println output in Kotlin - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of print and println combination

What is the output of this Kotlin code snippet?

Kotlin

fun main() {
    print("Hello")
    println("World")
    print("!")
}

A

HelloWorld!

B

HelloWorld
!

C

Hello
World
!

D

Hello
World!

💡 Hint

Remember that print does not add a new line, but println does.

The first print outputs "Hello" without a newline. Then println outputs "World" and adds a newline. Finally, print outputs "!" without a newline. So the combined output is "HelloWorld!" followed by a newline.

❓ Predict Output

intermediate

Output with multiple println calls

What will this Kotlin program print?

Kotlin

fun main() {
    println("A")
    println("B")
    println("C")
}

A

C
B
A

B

A
B
C

C ABC

D A B C

💡 Hint

Each println adds a newline after printing.

Each println prints the string and then moves to a new line. So the output is A, then newline, B, newline, C, newline.

🧠 Conceptual

advanced

Difference between print and println

Which statement best describes the difference between print() and println() in Kotlin?

A print() outputs text with a newline; println() outputs text without a newline.

B Both print() and println() output text with a newline at the end.

C print() outputs text without a newline; println() outputs text with a newline at the end.

D Both print() and println() output text without a newline.

💡 Hint

Think about what happens after the text is printed.

print() writes text to the output without moving to a new line, so the next output continues on the same line. println() writes text and then moves to the next line.

❓ Predict Output

advanced

Output of mixed print and println with variables

What is the output of this Kotlin code?

Kotlin

fun main() {
    val x = 5
    print("x = $x")
    println(", x squared = ${x * x}")
    print("Done")
}

A

x = 5, x squared = 25
Done

B x = 5, x squared = 25Done

C

x = 5
, x squared = 25
Done

D

x = 5
, x squared = 25Done

💡 Hint

Remember where println adds a newline.

print("x = $x") outputs "x = 5" without newline. println then outputs ", x squared = 25" and adds a newline. Finally, print("Done") outputs "Done" on the new line.

❓ Predict Output

expert

Output of nested print and println calls

What is the output of this Kotlin program?

Kotlin

fun main() {
    print("Start")
    println()
    print("End")
}

A StartEnd

B

Start
End

C

Start
 End

D

Start

End

💡 Hint

What does println() with no arguments do?

print("Start") outputs "Start" with no newline. println() with no arguments outputs just a newline. Then print("End") outputs "End" on the new line. So output is Start, newline, newline, End.