FAQ: Comment Compiler Java En Class?

How do you comment out a class in Java?

Style. 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 does the Java compiler process comments?

Java Compiler set filter for those piece of code that won’t compile ever except for the comments. Compiler do not parse the comments and leave it as it is. Java code supports three kinds of comments within Program. Anything that is placed between /* and */ or /** and */ or after // is ignored by Java Compiler.

Are comments compiled Java?

No, documentation isn’t included in the compiled class file. The javadocs can be generated with the javadoc program. All javadoc will be converterd to HTML.

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What does the Java compiler ignore?

The @SuppressWarnings annotation type allows Java programmers to disable compilation warnings for a certain part of a program (type, field, method, parameter, constructor, and local variable). Normally warnings are good. So programmers can choose to tell the compiler ignoring such warnings if needed.

What are the different kinds of comments?

In Java there are three types of comments:

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

How do you add comment in Java?

Adding Comments to Java Code

  1. Traditional comments: The first five lines of the listing form one traditional comment. The comment begins with /* and ends with */.
  2. End-of-line comments: The text //I?
  3. Javadoc comments: A javadoc comment begins with a slash and two asterisks (/**).

How do you write a multi line comment in Java?

Multi line comments in Java start with /* and end with */. You can comment multiple lines just by placing them between /* and */.

What is /* in Java?

/** and /* in Java comments Java supports single-line and multi-line comments very similar to C and C++. /** is known as documentation comments. It is used by Javadoc tool while creating the documentation for the program code. /* is used for multi-line comments.

What is a documentation comment in Java?

What is Javadoc? 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. Similarly, the line which preceeds // is Java single-line comment.

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What are the two types of comments?

Using Two Types of Comments

  • Marginal comments.
  • End comments.

Why comments are used in Java?

Comments in Java are the statements that are not executed by the compiler and interpreter. It can be used to provide information or explanation about the variable, method, class or any statement. It can also be used to hide program code for a specific time.

How do you teach commenting skills?

The first teaching

  1. Discuss what a comment is and what makes a good one.
  2. Offer your own Sharing.
  3. Explain what sorts of comments listeners might make.
  4. Brainstorm comments with the class.
  5. Do separate questions and comments.
  6. Invite individual comments.

Which compiler is used in Java?

Java compilers include the Java Programming Language Compiler (javac), the GNU Compiler for Java (GCJ), the Eclipse Compiler for Java (ECJ) and Jikes. Programmers typically write language statements in a given programming language one line at a time using a code editor or an integrated development environment (IDE).

Why @override is used in Java?

@Override @Override annotation informs the compiler that the element is meant to override an element declared in a superclass. Overriding methods will be discussed in Interfaces and Inheritance. While it is not required to use this annotation when overriding a method, it helps to prevent errors.

Is overriding possible in Java?

If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in Java. In other words, If a subclass provides the specific implementation of the method that has been declared by one of its parent class, it is known as method overriding.

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