What is Javadoc comments in Java?

What is a javadoc comment?

In general, Javadoc comments are any multi-line comments (” /** … */ “) that are placed before class, field, or method declarations. They must begin with a slash and two stars, and they can include special tags to describe characteristics like method parameters or return values.

What is the purpose of javadoc?

Javadoc is a tool for generating API documentation in HTML format from doc comments in source code. It can be downloaded only as part of the Java 2 SDK.

Should I use javadoc comments?

Every method that somebody else can use (any public method) should have a javadoc at least stating its obvious purpose. I thoroughly document every public method in every API class. Classes which have public members but which are not intended for external consumption are prominently marked in the class javadoc.

What is the difference between javadoc and comments?

Documentation comments (known as “doc comments”) are Java-only, and are delimited by /**… */ . Doc comments can be extracted to HTML files using the javadoc tool. Implementation comments are meant for commenting out code or for comments about the particular implementation.

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What are the three types of Java comments?

In Java there are three types of comments:

  • Single – line comments.
  • Multi – line comments.
  • Documentation comments.

Where do you put class comments?

By convention, in Java, documentation comments are set inside the comment delimiters /** … */ with one comment per class, interface, or member. The comment should appear right before the declaration of the class, interface or member and each line of the comment should begin with a “*”.

How do you write a good Javadoc?

Javadoc coding standard

  1. Write Javadoc to be read as source code. …
  2. Public and protected. …
  3. Use the standard style for the Javadoc comment. …
  4. Use simple HTML tags, not valid XHTML. …
  5. Use a single <p> tag between paragraphs. …
  6. Use a single <li> tag for items in a list. …
  7. Define a punchy first sentence.

Is Javadoc still used?

Javadoc is pretty much the accepted standard for documenting java code. Being able to convert it into HTML is just one of the benefits; a much more important one is that all the major Java IDEs understand it as well, and they will use it to display context-sensitive help while you code.

What are javadoc and when should they be used?

Javadoc is a tool which comes with JDK and it is used for generating Java code documentation in HTML format from Java source code, which requires documentation in a predefined format. Following is a simple example where the lines inside /*…. */ are Java multi-line comments.

Is void a method?

The void keyword allows us to create methods which do not return a value. … This method is a void method, which does not return any value. Call to a void method must be a statement i.e. methodRankPoints(255.7);. It is a Java statement which ends with a semicolon as shown in the following example.

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What does P mean in javadoc?

According to the official guide on writing doc comments, the correct way to separate paragraphs is with the paragraph tag: <P> . Take a look at the seventh bullet in the section on Format of a Doc Comment.

How do you add comments to a Javadoc?

Bear the following in mind when using Add Javadoc comment (Alt+Shift+J):

Keyboard shortcuts for comments and JavaDocs.

Shortcut Command Description
Alt+Shift+J Add Javadoc Comment Add a Javadoc comment to the active field/method/class. See the notes below for more details on where to position the cursor.

What does void mean in Java?

Void: It is a keyword and used to specify that a method doesn’t return anything. As main() method doesn’t return anything, its return type is void. As soon as the main() method terminates, the java program terminates too.

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