Java, like any other programming language, is constantly improving. In order to write any application, it is first necessary to learn as much information as possible about the processes and resources that may be required in the implementation of the task.

In the case of web utilities (not only in Java), it is important to distinguish between servers and application servers. They are two different elements.

Application Server is a utility represented by a server. The latter deals with system support for programs and is also responsible for providing lifecycles in accordance with established operating principles. It functions either independently or as a provider of pages for other web-servers. Responsible for the exchange of information between software and clients. Creates the software environment for the final application, helps authorize and identify clients, organizes sessions for each “connected”.

Here are a few common utility servers in Java:

Tomcat Apache;
JBoss;
IBM WebSphere;
Oracle WebLogic.

The Web Server has mainly to do with the way the data is transferred. If we talk about Application Server, we can conclude that this is a narrower concept. Refers to the way programs are executed (remote processing of client commands). The corresponding terms are not placed in one row. They are responsible for completely different characteristics of software.

Java, like any other programming language, allows you to create unique content. If it belongs to the “web” type, we must first understand the technologies used to run the software and process the information. Java has several of them. It is worth choosing depending on what exactly the program is being written for.