Java Comments

Imagine you've written a Java program that you need to share with your project team. Without comments, your teammates might struggle to understand what your code does. To make your code more understandable, you should add comments explaining its functionality.

Comments are of two types#

1. Single-line Comment#

In Java, a single-line comment starts and ends in the same line. To write a single-line comment, we can use the // symbol. For example,

class HelloWorld {
    public static void main(String[] args) {
        // print Hello World to the screen
        System.out.println("Hello World");
    }
}

2. Multi-line Comment#

When we want to write comments in multiple lines, we can use the multi-line comment. To write multi-line comments, we can use the /*....*/ symbol. For example,

/* This is an example of a multi-line comment.
 * This program prints "Hello, World!" to the console.
 */

class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

Note:- Comments are completely ignored by Java compilers.

Why Comments important?#

• Improve Code Readability: Helps other developers understand your code.
• Ease of Debugging: Makes it easier to troubleshoot issues later.
• Maintainability: Helps future developers (or even yourself) understand the logic after a long time.
• Collaboration: Essential when working in a team, so others can quickly grasp the functionality.

Conclusion#

By using comments effectively, you ensure that your code remains clear, maintainable, and easy to understand for everyone who works with it. In our upcoming blogs we have used comments in the code so that you will understand the code easily.