What is Java

What is Java
Java is a programming language that is highly popular and has dominated the field from the early 2000s. James Gosling developed Java with Mike Sheridan and Patrick Naughton in 1995, and it is a class-based and object-oriented language, similar to C++, with advanced and simplified features.
Java has continued to be a popular language because of the constant updates and support that is still being offered for the language. The independent programming language follows the logic of “Write once; Run anywhere.” i.e. compiled Java code can run on all platforms which supports Java.
The maturity of Java lends it and its developers a lot of reliability as almost all of the kinks and errors have been experienced and worked through.

Java Features
Java has a lot of great features that make it a fantastic option for your applications and software.
Simple: Java has simplified the language by removing complexities such as pointers and operator overloading as seen in many other programming languages.

  • Portable: Java is platform-independent meaning any application written for one platform can easily be ported to another platform
  • Object-oriented: Everything in Java is an “object”. Objects can have multiple states, described by attributes and behaviours executed in functions. Interactions between these objects perform all of the program functionality.
  • Secured: Java is compiled into bytecode, which is not human readable. Java runs in isolation, within the JVM to prevent penetration from malicious sources. This dramatically hinders any tampering and is unlikely to be affected by viruses/malware
  • Dynamic: Memory management in Java is dynamic, and its approach reduces memory allocation errors as well as memory leaks. This allows for better overall performance and reliability of applications.
  • Distributed: Java exposes an interface called the Remote Method Invocation (RMI), this allows any application on a network to remotely execute a method and retrieve the results. On a larger scale, this means Java can be used to execute functions across the internet without compromising either system.
  • Robust: Reliability in Java applications is improved by error checking mechanisms that run both at compilation and execution time.
  • High Performance: Just-In-Time (JIT) compilation is an approach used by Java to increase performance by only converting its bytecode to native machine code as and when it’s required resulting in faster and lighter performance software.
  • Multithreaded: Most modern CPU’s support multithread execution, Java can leverage that technology to run different threads concurrently. Concurrent operations lead to reduced execution time and maximised usage of processing power.

Popular Java Applications around the World

Google and Andriod OS
Google uses Java for most of its products, and it is the main language that is used in their back-end of the Android Operating System

Netflix uses Java for most of its applications back-end

Spotify uses Java to implement some functionality of its web application. For example to log and stabilise data transfers

Java is one of the main languages of LinkedIns’ server-side platform. It helps to implement the logging of functionality, messaging and recognise and convert links into text. LinkedIns’ Android App was also developed using Java

Uber used Java as the main language in the development of its mobile application.

Uses Java for its web services (AWS). Amazon writes automation scripts in Java as it is well-supported, has many internal tools and environments available for developing helper tools.

Java is used in the popular game primarily for building game logic, rendering and messaging.


Java Applications
Java is an extremely versatile programming language that has millions of applications, and here we will look at how Java is used in a couple of business sectors to manage data, solve problems and give insights.

  • Banking – Java is used in Banking Applications for Transaction Management
  • Retail – Java is used in many restaurants and stores for their Billing Applications
  • Information Technology – Can be used to solve implementation and infrastructure dependencies
  • Android – All Android applications are either written in Java or use a Java API
  • Financial Services – Java is used in Financial Institutions in server-side applications
  • Stock Market – Java is used in writing algorithms to advise which company to invest in
  • Scientific and Research Community – Java is used to create applications to deal with huge amounts of data

Java is an amazing programming language that we love to know everything about. Whether you are a business who needs help with your in-house Java application, an aspiring programmer wanting to specialise in Java or a conglomerate needing to upskill their team, MaH Quests are the Java specialists you can rely on.

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