Comments and documentation syntax in Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to write a single-line comment in Kotlin.

Kotlin

//[1] This is a comment

Drag options to blanks, or click blank then click option'

A This is a single-line

B This is a

C This is

D This is a single-line comment

Attempts:

3 left

💡 Hint

Common Mistakes

Using /* */ for single-line comments

Forgetting the slashes at the start

In Kotlin, single-line comments start with //. Anything after // on the same line is a comment.

2fill in blank

medium

Complete the code to write a multi-line comment in Kotlin.

Kotlin

/*[1]
This is a multi-line comment
*/

Drag options to blanks, or click blank then click option'

A This is a multi-line comment

B This is a multi-line comment start

C This is a multi-line comment block

D This is a multi-line comment example

Attempts:

3 left

💡 Hint

Common Mistakes

Using // for multi-line comments

Not closing the comment with */

Multi-line comments in Kotlin start with /* and end with */. Everything in between is part of the comment.

3fill in blank

hard

Fix the error in the Kotlin documentation comment syntax.

Kotlin

/**[1]
 * This function adds two numbers.
 */

Drag options to blanks, or click blank then click option'

A This is a single-line comment

B This is a normal comment

C This is a multi-line comment

D This is a documentation comment

Attempts:

3 left

💡 Hint

Common Mistakes

Using /* instead of /** for documentation comments

Confusing documentation comments with normal comments

Kotlin documentation comments start with /** and are used to describe code elements. They are different from normal comments.

4fill in blank

hard

Fill both blanks to create a Kotlin documentation comment for a function.

Kotlin

/**
 * [1] adds two integers.
 * @param [2] first number
 */

Drag options to blanks, or click blank then click option'

AThis function

Bnum1

Cnumber1

DAdds

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong parameter names in @param

Not describing the function clearly

Documentation comments describe the function and its parameters. Use @param to explain each parameter.

5fill in blank

hard

Fill all three blanks to complete the Kotlin documentation comment with description, parameter, and return tag.

Kotlin

/**
 * [1] multiplies two numbers.
 * @param [2] first number
 * @return [3] the product
 */

Drag options to blanks, or click blank then click option'

AThis function

BnumA

Cthe result

DnumB

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing parameter names

Forgetting the @return tag

Documentation comments should describe the function, its parameters, and what it returns using @param and @return tags.