Comments in Java

Comments

The computer does not execute comments. They are only used to explain the code.

Types Of Comments

• Single Line Comment: For commenting single line of code. E.g.,// This is a single line comment.
• Multi Line Comment: For commenting on multiple lines of code. E.g.,/* This is a multi line comment. */

Single Line Comment Example

public class Main {
    public static void main(String[] args) {
        // This prints Hello World on screen
            System.out.println("Hello World");
    }
}

Hello World

Here // is a single line comment. This prints Hello World on screen is completely ignored by Java compilers.

Multi Line Comment Example

public class Main {
    public static void main(String[] args) {
             /* This is a multi line comment.
            You can also write here.
            */
            System.out.println("Hello World");
    }
}

Hello World

Why Comments Are Important?

Comments are important because they help you to understand your code. It also helps other programmers to understand your code. It is a good practice to write comments in your code.