Typically, a Web application is packaged in a WAR (Web ARchive) file, which is just a ZIP file with a special directory structure and configuration file layout.

JavaServer Faces is the Java standard technology for building component-based web interfaces. Get started with JSF, including what's new in JSF 2.3 ...

One of the original Java web technologies, JSP is still widely used with servlets and JSTL. Here's how to use Jakarta Server Pages to build dynamic web pages that connect to the Java back end.