Comments are non-executing statements in Java that are used to explain the code. They can be used to provide documentation, explain the purpose of the code, or to debug the code.
There are two types of comments in Java:
Single-line comments: Single-line comments start with two forward slashes (//) and continue to the end of the line.
Multi-line comments: Multi-line comments start with a forward slash and an asterisk (/*) and end with an asterisk and a forward slash (*/).
Here is an example of a single-line comment:
// This is a single-line comment
Here is an example of a multi-line comment:
/*
This is a multi-line comment.
It can be used to explain the code in more detail.
*/
Comments are ignored by the compiler, so they do not affect the execution of the code. However, they can be very helpful for understanding the code and for debugging the code.
Here are some tips for writing good comments:
Use comments to explain the code.
Be specific and concise in your comments.
Use comments to explain the purpose of the code, not the details of the code.
Use comments to debug the code.
Update your comments as you update your code.
Comments are an important part of any programming language. They can help to make code more readable, maintainable, and debuggable. By following these tips, you can write good comments that will help you to write better code.
Here are some additional details about comments in Java:
Comments can be nested.
Comments can be used to comment out code.
Comments can be used to create Javadoc documentation.
Javadoc is a documentation system for Java. It uses comments to generate documentation for classes, methods, and other constructs.
To create Javadoc documentation, you need to add special comments to your code. These comments start with a forward slash and two asterisks (/**) and end with two asterisks and a forward slash (*/).
Here is an example of a Javadoc comment:
/**
* This is a Javadoc comment.
* It can be used to generate documentation for classes, methods, and other constructs.
*/
Javadoc documentation can be generated using the Javadoc tool. The Javadoc tool can be used to generate documentation in HTML, XML, or other formats.
By adding Javadoc comments to your code, you can create documentation that will help you to understand your code and to share your code with others.
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