Technology

What Are the Popular Java Applications?

About 3 billion mobile phones are on Java-powered OS 

About 125 million TV sets and Blu-ray disc players run on Java 

More than 64,000 giant companies in the United States alone, for example, Google, Yahoo, Amazon, and LinkedIn, rely on Java to develop their applications.

Since Java was first released in 1995, it has recorded steady growth to become the most demanded programming language offering all that is needed for developers to build software solutions. Today, literally every major industry uses Java apps

Java, a general-purpose programming language, has been widely adopted for server-side development for a  wide range of technologies including big data, science, android, gaming, and enterprise-grade applications. Java applications adopt the WORA concept which stands for write once, run anywhere thus they can be run on just any platform. Additionally, Java offers the following beneficial features for application development: 

  • Java is object-oriented based on OOP principles of abstraction, encapsulation, inheritance, and polymorphism which makes it fast and easy to execute.
  • Java is designed to be simple to learn with simple syntax.  
  • Java is multithreaded making it possible to write programs that can execute multiple processes simultaneously and thus the most preferred for building interactive applications.  
  • Java is designed for the distributed environment.  

Here are 11 popular Java applications. 

  • Mobile (Android) applications 

As of July 2021, the Android mobile operating system had the largest market share in the world at 72.18%. That Android is Java-based, it is clear that Java is the programming language of choice for android app development thanks to its simplicity and object-oriented model. Most importantly, developers use the Java Platform Micro Edition (ME) designed for developing software that runs on embedded processors found in smartphones, tablets, and other mobile devices. These applications are portable, secure, and make use of the native capabilities of mobile devices. Besides, Java is supported by AndroidStudio and Kotlin. 

Popular Java-based mobile applications include Uber app, Netflix, Twitter, QRReader, Nasa WorldWind, Spotify, and CashApp. 

  • Desktop GUI applications

Java has several features that make it most favorable for GUI development using APIs like the Abstract Windowing Toolkit (AWT), JavaFX, and Swing. 

AWT interface is applied for designing the look and feel of a user environment. It also comes with pre-assembled GUI components like buttons, lists, menus, and more. 

Swing comes with packages for designing and putting together GUI components like the like button, text field, scroll bar, tab, list, and others. 

JavaFX, unlike AWT and Swing, features a set of graphic and media packages for designing, testing, debugging, and deploying controls for UI components like buttons and labels. 

Desktop apps like ThinkFree, Media Player, and Acrobat Reader. 

  • Web-based applications 

Java is an excellent programming language for building the server-side of web applications through Servlets, JSPs, JSF, and Struts. To begin with, Java features an extensive range of libraries and rich sets of APIs making it one of the most stable and functional languages for web development. Secondly, Java code is easy to use and maintain, coming with excellent debugging tools. In addition, Java offers a highly secure web development environment. Finally and most importantly, is its ability to run on multiple platforms backed by its WORA principle.  

All these features combined make Java the go-to language for the health, finance, insurance, eCommerce, and education sectors and has thus been adopted by big names like Google, Facebook, Instagram, Twitter, Amazon, eBay, Uber, and LinkedIn.  

  • Enterprise applications 

We have seen that Java is a robust, secure, and stable programming language for building web applications. Also, Java is the preferred language for building scalable enterprise-grade applications. According to Oracle Corporation, up to 97% of enterprises use Java for the development of large software using the Java  Enterprise Edition (Java EE) API designed for developing scalable, distributed, multi-tiered, and secured network applications for large business corporations, banks, enterprise resource planning, charities, CRM  systems, ERP systems, government agencies, clubs, and others. 

These include companies like Naukri, Uber, Pinterest, Spotify, eBay, TripAdvisor, and Wipro. 

  • Cloud-based applications 

Java is also compatible with cloud servers thus widely used for building cloud-hosted applications using tools like Oracle WebLogic. Most cloud services adapt the pay-as-you-go model making them a cost-effective option that can scale up and down on demand without businesses incurring additional capital costs. Oracle, AWS, Azure, Google Cloud, IBM, and other cloud platforms are top cloud platforms for application development using programming languages like Java. 

  • POS systems 

Retail POS systems perform the following tasks among others: 

  • Logging transactions 
  • Inventory management 
  • Employee management
  • Tracking customer service

 Android is the most preferred OS for POS terminals. For this reason, Java becomes the preferred language for POS app development in addition to the fact that Java is both stable, scalable, and a mainstream language. 

  • Big Data technologies

Big data technologies like Hadoop, Spark, HBase, ElasticSearch, and Mahout have been built with Java language. For big data applications, highly scalable capacity, powerful memory management, and automatic garbage collection by Java are of utmost priority. This is because these tools handle complex massive data volumes that are analyzed to discover useful trends, patterns, and insights for data-driven decision-making. 

  • Distributed applications 

Distributed programming allows developers to create applications that run systems across multiple nodes within a network. This increases throughput and reduces latency for certain systems and applications. Java has widely been adopted for the development and deployment of service-oriented architecture for applications powered by the web. Hadoop, Spark, Kafka, RMI (Remote Method Invocation), Common Object Request Broker Architecture (COBRA), Message Passing Interface (MPI), sockets, and Multicast Sockets are all distributed frameworks for Java programming. 

  • Gaming applications 

Java programming applications extend to the gaming industry. Java is ideal because it runs on JVM (Java Virtual Machine) rather than on hardware. The popular Minecraft sandbox video game, specifically its logic, rendering, and messaging, is written in Java. Also, Java is supported by 3D-Engine which makes it a good language for designing 3D games like jMonkey. Still, Java remains one of the best platforms for developing 2D games like minesweeper, Pacman, Tetris, and others available on Android phones and desktops.  

  • Artificial Intelligence technologies 

Machine learning (ML) is a revolutionary  AI technology that sent the world on a wave of transformations. What’s more, some of the most powerful ML libraries have been built using Java including Deep Learning for Java (DL4J). MLib for Apache Spark, Jblas Linear Algebra for Java library, and TensorFlow. This is because Java is considered a fast and stable language. If self-driving cars, Netflix, Alexa, and Siri tickle your interest, then you know the programming language behind these notable inventions.  

  • Embedded systems 

An embedded system is microprocessor-powered hardware integrated with software and designed to perform a specific function independently or as part of a larger system. A good example of embedded systems include microchips used in cellular phones, gaming consoles, medical equipment, smart cards, sensors, mobile phone SIM cards, fitness trackers, TV devices, and more. Java is a core language for the development of embedded systems such as TV devices and Blu-Ray disc players. 

Conclusion 

Java has registered remarkable success since its inception with most developers preferring it to develop apps for various systems across industries. However, while Java has been hailed for its unique and most beneficial features for application development, what really counts for successful application development is developer knowledge and experience using Java, the stack or runtime environment, as well as the libraries and reusable code available for developing the application. Different applications require a specific environment, stack, libraries, and code thus part of a developer’s experience is selecting the right toolset for the project they intend to work on.

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