# Java Comments
To comprehend any programming language, there are several kind of comments which are used. These comments are advantageous in the sense that they make the programmer feel convenient to grasp the logic of the program.
Operators are symbols that performs some operations on one or more than one operands. Once we declare and initialize variables, we can use operators to perform certain tasks like addition, subtraction etc.
By literal we mean any number, text, or other information that represents a value. This means what you type is what you get. We will use literals in addition to variables in Java statement.
Sun Microsystems has provided a computer software tool known as Javadoc. This tool is used to generate API documentation into HTML format from Java source code. It is interesting to know that Javadoc is the industry standard for documenting Java classes.