8 Most Popular Java Applications Used World-Wide in 2023

Java has become a popular programming language in the world. Various large technology companies use Java to develop applications with millions of users.

Java is a powerful programming language because it is multiplatform and has a complete library. One of the innovations that made Java a favorite choice was the Write Once, Run Anywhere (WORA) concept. This feature makes it easy for program code written using Java to be directly operated on different platforms without rearranging the code.

Java was created by Sun Microsystems’ The Green Project in 1991, which was developed by James Gosling, Patrick Naughton, and Mike Sheridan.

This project was formed to create a new programming language that is more powerful than C and C++. Since its release in 1995, Java has had 17 versions, including a beta version. Java version 1.0 was released in 1996, and the latest Java version 15 was just released in 2020.

What is Java?

Java was released in 1995 by Sun Microsystems (which had been acquired by Oracle) and is a concurrent, class-based, object-oriented programming language based on C and C++ syntax. Java is known for its efficient processing speed in software, computer games, and applications for desktop and mobile.

It is used to develop web-based software and applications for multiple platforms and is very popular due to its ease of use for beginners, although it can take some time to master.

Why does this application use Java as a programming language?

Java can create complete applications that run on a single computer or be distributed across servers and clients in a network. As a result, you can quickly build mobile apps or run desktop apps that use different operating systems and servers, such as Linux or Windows.

Here are applications that Use Java as a Programming Language:

1. Google

Google uses Java for many of its products. Mainly for backend programming but also user interface development. For example, Google Docs – a document management application that is very similar to Microsoft Word.

But all changes here are saved automatically, and if you are authorized with Google on your device, you can always open and work with documents anywhere without having to download them.

2. Netflix

Netflix is one of the most popular entertainment companies that provide movies and TV shows in multimedia streaming. Most of the Netflix apps run on Java. With a bit of C++ mixed in. The Android and Android TV apps are almost built in Java.

Java is the foundation of the Netflix software architecture. Netflix’s core operational infrastructure, including monitoring tools and platform services, is all built using Java.

3. Spotify

Spotify is one of the most popular online audio streaming services globally. It uses Python and Java to implement some of the functionality of its web application, for example, to log and stabilize data transfers. Java is the primary programming language for Android applications.

4. LinkedIn

The following application is LinkedIn, one of the largest business social networks using Java as the primary programming language from the server side of the platform.

LinkedIn uses Java to implement logging functions and messages. Then also to recognize and convert links in the text. The Android version of LinkedIn’s mobile app is also developed with Java.

5. Instagram

Our favorite application is written in the Python programming language! With Python, Instagram launched a simple, minimalist, fast-paced application for sharing images. Python is used for the back end, while the front end is written in the React Native programming language.

6. Facebook

About 21 percent of the entire Facebook code is written in Python. The rest of Facebook is written in many languages, including PHP, C, C++, Erlang, and others. According to the Stack Overflow page, most of Facebook’s programming languages are written in PHP, while C++, Java, Python, and Erlang are used on the back-end.

7. Quora

Quora requires a programming language that is reliable, flexible, and simple. Finally, the founders of Quora decided to choose Python as the primary programming language. According to him, Python’s readability and efficiency make it a superior programming language to PHP, said Paragyte Technologies.

8. Reddit

Reddit is an application written in the Python programming language is Reddit. Initially, Reddit was registered in Common Lisp but was rewritten in Python in December 2005. This was done because Python provides more comprehensive access to code libraries, has concise properties, and can rely on flexibility.

Why Java Is Still Being Used?

The reason why Java is still being used is very pragmatic, if not idealistic. Imagine all these years as programmers. We have developed Java-based code. As a program development paradigm, programmers design code to be reused and utilized as much as possible through open-source programs. Programming projects rely on pre-built documentation.

Many programmers are also proficient at writing code in the Java language. Familiar with the tools and methodologies. Java-based documentation, product design, features, and support. But if we migrate to .NET, we must manage all that. A programmer has to port code, documentation, methodologies, and other unforeseen things that may go unsolved.

Companies need new employees to learn new technologies. Some of which cannot be overcome with time and money. The cost is enormous if you build an infrastructure from scratch again. It will be easier if the technology is still Java with more recent developments and improvements.

Companies usually have systems that work on a specific OS, not just one. Java, with its WORA (Write Once, Run Anywhere), provides an advantage over it. NET. Whereas .NET core was born in 2016, long after many companies adopted and released software in Java.

What Companies Used Java?

Currently, as many as 10,130 companies are reportedly still using Java in various aspects of their technology. Unsurprisingly, the United States is the leader among companies using Java, with over 60% share of the Java client market (approximately 64,000 businesses).

1. Microsoft

Companies like Microsoft still use it, you know. Microsoft uses Java for many things, such as indexing on Bing and the control plane on Azure. Of course, other divisions, such as LinkedIn, Minecraft, and Yammer, actively use Java.

2. Uber

The next big Java-based company is Uber. The company deals with real-time data, tracking drivers and incoming travel requests. With that, Uber should seamlessly sort data and match users quickly. That’s where Java comes in handy, handling requests and transferring data in the shortest time possible.

3. Paypal

Apart from Uber, Paypal also still uses Java. This well-known payment system has been using Java in its websites and applications for a long time. Of course, these large companies are actively looking for Java developers.

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