Put simply, JavaServer Pages are technology geared towards facilitating the development of web pages that contain dynamic content. Differently from an HTML page whose content stays pretty much the same, a JSP changes its content based on a number of things as, for instance, the information previously provided by the user. JSPs consist of HTML or XML (eXtensible Markup Language) content embedded with tags and Java scriptlets. JSPs can be seen as a more convenient approach for embedding dynamic elements into HTML than servlets. In fact, at run time, JSPs are translated into servlets. Moreover, aimed at increasing performance, servlet containers cache the compiled servlets.