? Comments in Java

? Quick Overview

Comments in Java are non-executable statements used to explain code, improve readability, and help developers understand logic without affecting program output.

? Key Concepts

Comments are ignored by the Java compiler
They improve code readability and maintenance
Java supports three types of comments

? Syntax / Theory

// Single-line comment
/* */ Multi-line comment
/** */ Documentation comment (Javadoc)

? Code Example(s)

? View Code Example

// This is a single-line comment
public class CommentsDemo {
// Main method starts execution
public static void main(String[] args) {
/* This is a
multi-line comment */
System.out.println("Java Comments Example");
}
}

?️ Live Output / Explanation

Output

The program prints a single line of text. All comments are ignored during execution.

✅ Tips & Best Practices

Use comments to explain why, not what
Avoid obvious or redundant comments
Use Javadoc comments for public classes and methods

? Try It Yourself

Add comments explaining each line of a Java program
Convert single-line comments into multi-line comments
Create a Javadoc comment for a custom method