FAQ: Comment Java Code?

How do you write comments in Java?

Single-line comments start with two forward slashes ( // ). Any text between // and the end of the line is ignored by Java (will not be executed).

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 single line comment?

Single-line comments allow narrative on only one line at a time. Single-line comments can begin in any column of a given line and end at a new line or carriage return. The // character sequence marks the text following it as a single-line comment.

What is single line comment in Java?

The single-line comment is used to comment only one line of the code. It is the widely used and easiest way of commenting the statements. Single line comments starts with two forward slashes (//). Any text in front of // is not executed by Java.

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What are Javadoc comments?

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.

Is 0 True or false Java?

A 0 (zero) is treated as false. Where as in JAVA there is a separate data type boolean for true and false. In C and C++ there is no data type called boolean. That’s why it instead uses 1 and 0 as replacements for true and false values.

What is true Java?

Allocates a Boolean object representing the value true if the string argument is not null and is equal, ignoring case, to the string “true”. Otherwise, allocate a Boolean object representing the value false. Examples: new Boolean(“True”) produces a Boolean object that represents true.

What is single line comment in C?

C-style. C-style comments are usually used to comment large blocks of text or small fragments of code; however, they can be used to comment single lines. To insert text as a C-style comment, simply surround the text with /* and */. C-style comments tell the compiler to ignore all content between /* and */.

How do you comment in code?

How to comment Code: Primarily, a single “block” comment should be placed at the top of the function (or file) and describe the purpose the code and any algorithms used to accomplish the goal. In-line comments should be used sparingly, only where the code is not “self-documenting”.

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What is comment give an example?

To comment is to make a statement, remark or express an opinion. An example of comment is when you share your opinion on an issue. The definition of a comment is a statement or remark. An example of a comment is a statement released in the paper that someone made about a scandal going on.

What is multiline comment?

Multiline comments are used for large text descriptions of code or to comment out chunks of code while debugging applications. Comments are ignored by the compiler.

What are the two types of comments?

Using Two Types of Comments

  • Marginal comments.
  • End comments.

What are the three types of Java comments?

In Java there are three types of comments:

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

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