1. Overview

In the present digital world, most of the websites and applications are developed in Java. Many Java-based applications are installed on the devices we use daily. Java is the most popular programming whether it is cellphones having internet or gigantic high tech computers in big organizations. Java is that most popular that are using over billions of devices by millions of developers. As it is obvious the development in the Java software is constantly and it is continuously developing since its origin. As development is in speed so a career in Java development is also increased. The current trends are changing the shape of the software and IT world.

2. Impact of Java Technology on the World

Let’s discuss some points about how Java is changing our world.

2.1 Internet of Things (IoT)

Internet of things is a network or you can say it the system of physical devices like electronics, home appliances, vehicles, computer systems, and sensors etc. that are connected with the internet. Objects are assigned an IP address to communicate over the internet and they can be monitored and controlled remotely.
IoT is the platform which enables objects to identify and understand the situation without being dependent on the human being.
IoT platforms help organizations to reduce the production cost through improved efficiency.

2.2 Future of Java Developers

With the growing demand of Java language, the field is booming for Java developers. New developments in the Java technology are like icing on the cake. Developers should require to be updated with the latest trends and keep updating. Java 9, Java EE 8, Big Data, Angular and React are the latest versions and frameworks in Java Development.

2.3 Growing Demand for Java

Today Java is the foundation for almost all type of applications, games and smart tech world. Java touches many areas in our daily lives. Android devices are the best example of it. Other than this, banking applications, financial companies, and scientific endeavors are well-known examples. To meet the growing demand for Java, companies have cropped up with the latest JDK and IDE.

2.4 Java’s lead position worldwide

Java has taken the lead position worldwide among all the programming languages. Over the decades, java has traveled along to be on top. Now Java is ruling over the digital world. A large number of devices and developers are working on Java technology. Because of the lead position and popularity of Java, lots of programmers and companies have shifted to Java from the other programming languages.

3. Latest Trends in Java Technology in 2018

3.1 Java 9

Java is the world’s most popular programming language. Java SE 9 is the latest release of Java. JDK 9 added more rich features for the Java developers. Some of the new features include-
JShell– This is also known as REPL (Read Evaluate Print Loop) and used to execute any Java constructs.
Module– This is a self-describing collection of code and data.
Module Example: File saved as – ‘module-info.java’

module blog {
     exports com.pluralsight.blog;
     requires cms;
}

Linking– jlink tool in Java 9 creates a minimal runtime image optimized for your application.
Stream API– This is the best improvement in Java 9. This enhanced security and rubustness.
Private Interface Methods– Java 9 introduces a private helper method.
Understand this by an example-

public interface MyInterface {
    void normalInterfaceMethod();
    default void interfaceMethodWithDefault() { init(); }
    default void anotherDefaultMethod() { init(); }
    // This method is not part of the public API exposed by MyInterface
    private void init() { System.out.println("Initializing"); }
}

HTTP 2 Client– New HTTPClient API to support HTTP 2 streams and server push features.
Process API Improvements– Java 9 with improved API to control and manage operating system processes.

3.2 Java EE 8

Java EE 8 is the Java Enterprise Edition’s latest release with ultimate features. Java EE 8 mainly focuses on HTML 5 and HTTP/2 standards also improved infrastructure for applications in the cloud.
Latest features in Java EE 8 are-

  •  JSON Binding API
  •  JAX-RS 2.1reactive client API
  •  HTTP/2 supports in Java Servlet
  •  CDI 2.0 which emphasizes on asynchronous events
  •  Updates on JSON-P (JSON Processing API)
  •  Servlet 4.0 aligns the servlet specification with HTTP/2

3.3 Angular JS

Angular JS is a JavaScript Framework and can be added in an HTML page by using a <script> tag. This framework is perfect for Single Page Applications (SPAs). Following is the example to better understand what is Angular JS.

<!DOCTYPE html>
<html lang="en-US">
<!-- path of angular js file -->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body>
<!-- body part -->
<div ng-app="">
<p>Enter your college Name : <input type="text" ng-model="name"></p>
<h1>Hello {{name}}</h1>
</div>

</body>
</html>

3.4 React JS

React JS is also an open source library which is designed by Facebook for building user interfaces. React is the alternative of Angular and more popular than this. React is flexible and solve real problems. React made easy to compose complex UIs by using its “components”. This is a tool for building UI components.
Example:

class ShoppingList extends React.Component {
    render() {
        return (
                <div className="shopping-list">
                <h1>Shopping List for {this.props.name}</h1>
                 <ul>
                   <li>Instagram</li>
                   <li>WhatsApp</li>
                   <li>Oculus</li>
                </ul>
              </div>
        );
    }
}

3.5 Spring Framework

Spring is a lightweight framework which can be called as a framework of frameworks because it supports various other frameworks such as Hibernate, Struts, JSF etc. Spring is the most popular for enterprise Java. Millions of developers are using this framework to create high performing and reusable code. Spring framework is focused to make J2EE development easier by enabling a POJO-based programming model.
Spring’s web framework is well designed MVC framework. Spring uses the DI (Dependency Injection) technology, the flavor of Inversion Control. Aspect Oriented Programming (AOP) is the key component of Spring Framework.
Fast Development, Predefined Templates, Easy to Test, Powerful Abstraction etc. are some key features of Spring Framework.

3.6 Node.js

A very powerful JavaScript based framework which is built on Google Chrome’s JavaScript V8 Engine. Node.js is a free open-source environment. This can run on Windows, Linux, Unix, and Mac OS. Node.js is a cross-platform JavaScript runtime which uses asynchronous programming. This collects data and can delete, add, and modify data in your database. After the Node.js came into existence, JavaScript becomes more than just developing a website interactive. The non-blocking I/O model makes it lightweight and efficient for real-time applications. “.js” is the file extension of Node.js.

3.7 Hadoop

Hadoop is the framework to store big data by Apache Software Foundation (ASF). Hadoop is a very popular technology right now. It is a framework to store and running the process of data. Hadoop is the collection of open-source utilities and is in big demand now. Hadoop provides massive storage for any kind of data and the ability to handle virtually concurrent tasks. Hadoop provides flexibility and quick processing of any size of data in low cost. Hadoop provides parallel processing of data as it works on multiple machines simultaneously.
Hadoop have four modules:

  • Hadoop Common
  • Hadoop YARN
  • Hadoop Distributed File System
  • Hadoop MapReduce

3.8 BlockChain

BlockChain was initially used in domains of cryptography and data structures. You must hear the term BlockChain many times in reference to BitCoin and cryptocurrency. BlockChain keeps a record of all data exchanges and it is called as a transaction. It uses a distributed system to verify each transaction. This uses a concept of “keys” to provide safe transaction.
Here are some of the real-time examples of BlockChain Technology.

  • Spotify– To help develop solutions for connecting artists and licensing agreements.
  • Blockpoint– This simplified the creation of payment systems.
  • Warranteer- This application helps the customer to easily get information regarding the purchased product and get service if the product is damaged.
  • MedicalChain- This is the first healthcare company which is using BlockChain technology and deliver a complete telemedicine experience.
  • Ubiquity- Offers to securely records property information.
  • Bitcoin Atom- Allows everyone to exchange cryptocurrencies without any exchange hacks.

3.9 Artificial Intelligence

Artificial Intelligence which is abbreviated as AI is something to be made by human but non-natural with the ability to think and understand. Sometimes this is also called as machine intelligence also. Artificial Intelligence is a science and engineering to make intelligent machines. This is the area in which intelligent machines are designed with the skills of speech recognition, problem-solving, learning, and planning. Highly technical and specialized research required to associate with AI.
AI Programming in Java is more than beneficial because of its easy use and facilitated visualization. Use of Swing and SWT in AI programming makes graphics and interfaces look appealing.

3.10 Scala

Scala is a general-purpose high-level programming language which combines object-oriented and functional programming. Scala programming depends on Java, so if you are a Java developer then it is pretty simple for you to move on with Scala. Scala code is compiled through JVM (Java Virtual Machine). The syntax of Scala is case-sensitive and all class names should start with uppercase letter and method names should start with lower case letter. “.scala” is the file extension of Scala files.

To learn Scala: Click Here
A simple example of “HelloWorld.scala”

object HelloWorld {
    /* This is my first scala program.
     * This will print 'Hello World' as the output
    */
    def main(args: Array[String]) {
        println("Hello, world!") // prints Hello World
    }
}

4. Conclusion

In this article, we have discussed growing technologies and trends amongst java developer.Here we have cover big data frameworks like Hadoop, machine learning, spring framework and js frameworks with an example.

5. References

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