Kotlin Comment

In programming, comments are important for documentation, explanation, and communication. Comments are notes that developers add to their code to explain what the code does or document specific parts of the code. Kotlin supports two types of comments: single-line comments and multi-line comments.

Syntax

• Single-line comments start with // and continue until the end of the line.

// This is a single line comment in Kotlin

• Multi-line comments start with /* and end with */. They can span multiple lines.

/*
This is a multi-line comment
in Kotlin. It can span multiple lines.
*/

Example

// This is a single line comment

/* This is
   a multi-line comment
   in Kotlin */

fun main() { 
// The following line prints "Hello, World!"
  println("Hello, World!") 
}

Output

Hello, World!

Explanation

Comments in Kotlin are non-executable and don't affect the program's output. They're added to the code solely for documentation or explanation purposes. Single-line comments start with // and continue until the end of the line, while multi-line comments start with /* and end with */.

Comments can be added to different parts of the code, such as classes, functions, variables, and more. They're useful for explaining the purpose of the code, providing context or background information, and documenting specific parts of the code that might be hard to understand.

Use

Comments can be used for a variety of reasons, including:

• Explaining the code's purpose or functionality
• Documenting specific parts of the code for future reference
• Clarifying confusing or hard-to-understand code
• Communicating with other developers about the code
• Temporarily disabling code during testing or debugging

Important Points

• Kotlin supports two types of comments: single-line comments and multi-line comments.
• Single-line comments start with // and continue until the end of the line.
• Multi-line comments start with /* and end with */.
• Comments are non-executable and don't affect the program's output.

Summary

Comments are an essential part of any well-written code. Kotlin supports both single-line and multi-line comments for documenting and explaining code. They're non-executable and don't affect program output, but can be invaluable for clarifying confusing code or documenting specific parts of the application for future reference.