Kotlin Comments

In Kotlin, you can use two types of comments:

1. Single-line comments: Single-line comments start with // and continue until the end of the line. They are used to add explanatory notes or disable code temporarily. Here's an example:

// This is a single-line comment
val x = 10 // This is a single-line comment that follows code

2. Multi-line comments: Multi-line comments start with /* and end with */. They are used to add longer explanations, document code, or disable multiple lines of code temporarily. Here's an example:

/*
This is a multi-line comment
that spans multiple lines
*/

/*
* This is a formatted multi-line comment
* that uses asterisks for each line
*/

It's also common to use comments to document code. In Kotlin, you can use a special type of comment called a documentation comment to generate documentation automatically. Documentation comments start with /** and end with */. They are used to describe the purpose of functions, classes, and other constructs in your code. Here's an example:

/**
 * Returns the sum of two numbers.
 *
 * @param a The first number.
 * @param b The second number.
 * @return The sum of `a` and `b`.
 */
fun sum(a: Int, b: Int): Int {
    return a + b
}

In this example, the documentation comment describes the purpose of the sum function and its parameters. The comment includes a @param tag for each parameter and a @return tag to describe the return value. Documentation comments can be parsed by tools like Dokka to generate documentation in HTML, PDF, or other formats.