In this post you will know why should i learn java in 2018.Java is popular programming language due its power and flexibility. If we see the latest version of Java, JDK 9 then we can find many improvements and new features in this release. Java 9 major features includes module system, Linking, JShell, Collection factory methods, improvements in Stream API, HTTP/2 support etc.. These changes and improvements are towards providing better programming language for application development.
Being a mature programming language, there are numerous resources available online that can act as your perfect companion in the learning process. Depending upon your need, you can look for free and paid learning resource to aid yourself.
Java is also one of the preferred programming languages for creating Big Data applications, so, if you want to make career in Big Data and then should learn Java.
Top Industries like Banking, Finance, and Insurance are using Java for developing most of the applications. So, Java is good programming language to learn in year 2018.
In future it might replace Java at many places particularly Android application development. Still Java is top language for development of these applications and you should learn Java in 2018.
The following are the areas where we used Java:
Popularity :
Java continues to be one of the most popular programming languages in the world. There's an infinite number of ways to use Java. According to the TIOBE Index for February 2016 and the IEEE Spectrum ranking, Java holds the title as the most popular programming language.
Applicability :
Java is everywhere. It is estimated to be running on over 3 billion devices worldwide. No other language runs on as many devices. Java lets you create programs that work almost anywhere, including smartphones, servers, ATMs, point of sale (POS) terminals, Blu-ray players, televisions, set top boxes, Internet of Things gateways, medical devices, Kindle E-readers, automobiles and more.
Real world applications :
There are many places where Java is used in real world, starting from commercial e-commerce website to android apps, from scientific application to financial applications like electronic trading systems, from games like Minecraft to desktop applications like Eclipse, Netbeans, and IntelliJ, from an open source library to J2ME apps etc. Let's see each of them in more details.
Android Apps
If you want to see where Java is used, you are not too far away. Open your Android phone and any app, they are actually written in Java programming language, with Google's Android API, which is similar to JDK. Couple of years back Android has provided much needed boost and today many Java programmer are Android App developer. By the way android uses different JVM and different packaging, but code is still written in Java.
Server Apps at Financial Services Industry
Java is very big in Financial Services. Lots of global Investment banks like Goldman Sachs, Citigroup, Barclays, Standard Charted and other banks use Java for writing front and back office electronic trading system, writing settlement and confirmation systems, data processing projects and several others. Java is mostly used to write server side application, mostly without any front end, which receives data form one server (upstream), process it and sends it other process (downstream). Java Swing was also popular for creating thick client GUIs for traders, but now C# is quickly gaining market share on that space and Swing is out of its breath.
Java Web applications
Java is also big on E commerce and web application space. You have a lot of RESTfull services being created using Spring MVC, Struts 2.0 and similar frameworks. Even simple Servlet, JSP and Struts based web applications are quite popular on various government projects. Many of government, healthcare, insurance, education, defense and several other department have their web application built in Java.
Software Tools
Many useful software and development tools are written and developed in Java e.g. Eclipse, InetelliJ Idea and Netbans IDE. I think they are also most used desktop applications written in Java. Though there was time when Swing was very popular to write thick client, mostly in financial service sector and Investment banks. Now days, Java FX is gaining popularity but still it is not a replacement of Swing and C# has almost replaced Swing in Finance domain.
Big Data technologies
Hadoop and other big data technologies are also using Java in one way or other e.g. Apache's Java-based HBase and Accumulo (open source), and ElasticSearch as well. By the Java is not dominating this space, as there are technologies like MongoDB which is written in C++. Java has potential to get major share on this growing space if Hadoop or ElasticSearch goes big.
Trading Application
Third party trading application, which is also part of bigger financial services industry, also use Java. Popular trading application like Murex, which is used in many banks for front to bank connectivity, is also written in Java.
J2ME Apps
Though advent of iOS and Android almost killed J2ME market, but still there is large market of low end Nokia and Samsung handset which uses J2ME. There was time when almost all games, application, which is available in Android are written using MIDP and CLDC, part of J2ME platform. J2ME is still popular on products like Blu-ray, Cards, Set top boxes etc. One of the reason of WhatsApp being so popular is because it is also available in J2ME for all those Nokia handset which is still quite big.
Embedded Space
Java is also big in the embedded space. It shows how capable the platform is, you only need 130 KB to be able to use Java technology (on a smart card or sensor). Originally Java was designed for embedded devices. In fact, this is the one area, which was part of Java's initial campaign of "write once, run anywhere" and looks like it is paying up now.
High Frequency Trading Space
Java platform has improved its performance characteristics a lot and with modern JITs, its capable of delivering performance at C++ level. Due to this reason, Java is also popular on writing high performance systems, because Though performance is little less compared to native language, but you can compromise safety, portability and maintainability for more speed and it only takes one inexperienced C++ programmer to make an application slow and unreliable.
Scientific Applications:
Nowadays Java is often a default choice for scientific applications, including natural language processing. Main reason of this is because Java is more safe, portable, maintainable and comes with better high-level concurrency tools than C++ or any other language.
Handsome Salary :
Recent reports confirm Java programmers are among the highest paid programmers in the industry. Analysis by Quartz, a global digital business news publication, confirms it's lucrative to have Java skills on your resume.
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