If you are a beginner and have just started learning Java, could you be thinking exactly where Java is used? You do not see many games written in Java, except in Minecraft, desktop tools such as Adobe Acrobat, Microsoft Office are not written in Java, nor their operating systems such as Linux or Windows, then, where exactly do Java people use? Do you have any application in the real world or not? Well, you are not alone, many programmers ask this question before starting Java, or after choosing Java, it is one of the programming languages chosen at the graduate level.
Java Real World Applications
There are many places where Java is used in the real world, from the commercial e-commerce website to Android applications, from scientific applications to financial applications such as e-commerce systems, from games such as Minecraft to desktop applications such as Eclipse, Netbeans. . . . . . . and IntelliJ, from an open source library for J2ME applications, etc. Let’s see each of them in more detail.
If you want to see where Java is used, it’s not too far away. Open your Android phone and any application, they are actually written in Java programming language, with the Google Android API, which is similar to JDK. A couple of years ago, Android has provided a much needed boost and today many Java programmers are Android application developers. By the way, Android uses different JVMs and different packages, as we saw in our previous article on how the Android application works, but the code is still written in Java.
Server applications in the financial services industry
Java is very big in financial services. Many global investment banks such as Goldman Sachs, Citigroup, Barclays, Standard Chart and other banks use Java to write front-end and back-office e-commerce systems, settlement and confirmation systems, data processing projects and many others. Java is mainly used to write applications on the server, mainly without any interface, which receives data from one server (ascending), processes them and sends them to another process (descending). Java Swing was also popular for creating heavy client GUIs for merchants, but now C # is rapidly gaining market share in that space and Swing is out of breath.
Java web applications
Java is also big in e-commerce and the web application space. It has many RESTfull services that are created using Spring MVC, Struts 2.0 and similar frameworks. Even simple web applications based on Servlet, JSP and Struts are very popular in several government projects. Many of the departments of government, health, insurance, education, defense and many others have their web application integrated in Java.
Many useful software and development tools are written and developed in Java, p. For example, Eclipse, InetelliJ Idea and Netbans IDE. I think they are also the most used desktop applications written in Java. Although there was a time when Swing was very popular to write heavy clients, mainly in the financial services sector and investment banks. Today, Java FX is gaining popularity but is not yet a Swing replacement and C # has almost replaced Swing in the Finance domain.