Java is a general-purpose, concurrent, class-based, and purpose-oriented computer programming language// Comment written on one line begins with //// *A written comment on several lines looks like this.* // *** Comments in Java script files look like this* It is used to describe the different class or attributes of a particular object.*: Main features** @ author - the name of the author of the code.* It contains contact information such as the email of the author of the code or the authors.