Code in Java

This assignment is based on Building HTML Validator. Below are the specification. Please

This program focuses on using Stack and Queue collections. Turn in files named Htmlvalidator.java, and HtmlValidatorTest.java from the Homework section of the course web site. You will need HtmlTag.java and idatorMain.java from the web site; place them in the same folder as your program. Though this assignment relates to web pages and HTML, you do not need to know how to write HTML to complet Background Information About HTML: Web pages are written in a language called Hypertext Markup Language, or HTML. An HTML file consists of text surrounded by markings called tags. Tags give information to the text, such as formatting (bold, italic, etc.) or layout (paragraph, table, list). Some tags specify comments or information about the document (header, title, document type). A tag consists of a named element between less-than symbols. For example, the tag for making text bold uses the element b and is written as . Many tags apply to a range of text, in which case a pair of tags is used: an opening tag indicating the start of the range and a closing tag indicating the end of the range. A closing tag has a / slash after its . So to make some text bold on a page, one would put the text to be bold between opening and closing b tags, like this. Tags can be nested to combine effects, bold italio/b> Some tags, such as the br tag for inserting a line break or img for inserting an image, do not cover a range of text and are considered to be "self-closing." Self-closing tags do not need a closing tag; for a line break, only a tag of is needed. Some web developers write self-closing tags with an optional / before the >, such as
. The distinction between a tag and an element can be confusing. A tag is a complete token surrounded by brackets, which could be either an opening or closing tag, such as