HTML Header overview

Headers in HTML and XHTML are tags used to define the headings within your page. There are six levels of headings, from <h1> . . . </h1> to <h6> . . .</h6>. The <h1> . . . </h1> level header is considered the most significant header, such as a page title, with an <h2> . . .</h2> level header performing as a subhead and so on. Headers at the fifth and sixth levels are rarely used

HTML overview

HTML, or HyperText Markup Language is designed to specify the logical organisation of a document, with important hypertext extensions. It is not designed to be the language of a WYSIWYG word processor such as Word or WordPerfect.

Java buffer overview

A Java buffer is a linear, finite sequence of elements of a specific primitive type. Aside from its content, the essential properties of a buffer are its capacity, limit, and position:

A buffer's capacity is the number of elements it contains. The capacity of a buffer is never negative and never changes.

A buffer's limit is the index of the first element that should not be read or written. A buffer's limit is never negative and is never greater than the its capacity.

A buffer's position is the index of the next element to be read or written. A buffer's position is never negative and is never greater than its limit.

Java comments in Code

There are three styles of java comments.

Comments enable you to write descriptive text alongside your code, annotating it for programmers who may read your code in the future. That programmer may well be you months or years later. You save yourself effort by commenting your own code. Also, you often find bugs when you write comments, because explaining what the code is supposed to do forces you to think about it.

Java Variables

The Java programming language has built-in "primitive" data types to support integer, floating-point, boolean, and character values. These primitive types hold numeric data that is understood directly, as opposed to object types defined by programmers. The type of every java variable must be defined explicitly.

The primitive data types java variable are: