Comments are ignored by the kotlin compiler. comment is a programmer readable explanation about source code that makes source code easier to understand by programmers.

Single-line Comments : Kotlin comments starts with two forward slashes // and end with end of the line

// This is a comment
// Hello World Program
fun main() {
    println("Hello World ")
}

Multi-line comments : start with /* and ends with */.

/**
 * This is a multi-line comment.
 *
 */

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