FAQ: Java Comment Line?

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.

How do you comment 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 “*”.

WHAT ARE comment entries 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.

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.

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What is the symbol for single line comment 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 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 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 */. /* Hello this is the way to write multi line comments in Java */

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 types of Java comments?

In Java there are three types of comments:

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

What are the different types of comments?

Types of Comments in Java

  • Single-line Comments. As the name suggests, it is for the beginners and is in a single line Java comments.
  • Multi-line Comments.
  • Documentation Comments.

Does 0 or 1 mean true?

Like in C, the integers 0 (false) and 1 ( true —in fact any nonzero integer) are used.

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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.

Is true equal to 1?

True has all bits set to 1. Which happens to equal -1 for all signed integer types. You should really consider to set OPTION STRICT to true. There’s no reason why you need an implict conversion from Int32 to Boolean or any other magic conversion that opens the door for nasty errors.

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