Java is an object-oriented programming language for applications and websites that was first released by Oracle in 1995. While Java has lost some of its popularity as a client-side programming language, it still sees heavy use in server-side applications — especially at big sites like Amazon and eBay. If you want to implement server-side features powered by Java, you'll want to make sure that your website host supports the use of Java.
You gain the most web-building functionality if you create a self-hosted site. This typically involves transfering the free WordPress CMS to server or signing up for a web host's optimized WordPress plan. With an optimized plan, the host automatically handles backend stuff, so you don't have to worry about updating the plug-ins and CMS, and enabling automatic backups. In these instances, the WordPress environment typically comes pre-installed on the server.