Single-line comments begin with // and continue until the end of the line.
They are commonly used for short explanations or to temporarily disable code.
// This is a single-line comment
System.out.println("Hello, World!"); // Prints a message to the screen
Multi Line Comments (/* ... */)
Multi-line comments begin with /* and end with */.
They allow you to write comments that span multiple lines, making them useful for providing detailed explanations.
/*
This is a multi-line comment.
It can span multiple lines.
*/
System.out.println("Java is fun!");
Documentation Comments (/** ... */)
Documentation comments are special comments used for generating HTML documentation of a program.
They begin with /** and end with */.
These comments are commonly used for describing methods and classes in Java.
Java’s Javadoc tool can process these comments to generate documentation files for your code.
You will learn more about documentation comments in future lessons for now consider a simple example
/**
* This class represents a simple calculator.
* It can perform addition and subtraction.
*/
public class Calculator {
/**
* Adds two numbers and returns the result.
*/
public int add(int a, int b) {
return a + b;
}
}
