You can say that GitHub is Facebook for developers. Its free repository hosts tons of open source projects. Apart from following tasks, you can follow individuals on GitHub as; thus, it makes it easier to keep up with your colleagues’ and ugh the Git version control system, GitHub allows developers to work seamlessly on their projects without hassles. The distributed version control system will enable you to work locally and merge the changes in a single commit.
Termux is a terminal emulator for Android. A big reason behind its immense popularity is its extensive collection of Linux packages. It lets you edit files with vim and nano, connect to servers over ssh, use the Python console as a calculator, or use frotz to run text-based games.
Learning about this project can teach you a lot about terminal emulation and Java mobile development. You can understand how popular it is when you consider that it has more than 6.7 thousand stars on its GitHub page.
Signal is a privacy-focused messaging app for Android devices. It is among the most prominent Java projects on GitHub with more than 14 thousand stars. It uses a phone’s data connection to communicate. Moreover, Signal can encrypt the messages stored on the user’s phone too.
You can check out its GitHub page and take inspiration from this project to create your own private messaging app. That would surely be among the best Java open source project ideas as building a private messaging app can teach you a lot about cryptography.
Java Design Patterns
Design patterns are among the most useful practices for a programmer. They help you speed up the programming process by solving general problems much quicker. Design patterns provide you with tested development paradigms, so the development process becomes quick and straightforward.
You can reuse design patterns to avoid small errors and issues, leading to significant problems in your project. Another advantage of design patterns is they enhance your code’s readability for others.
As the name suggests, Java design patterns is a collection of design patterns for Java. A product of seasoned architects and programmers, the patterns help you simplify development with Java. The project requires you to be familiar with the numerous Software Design Principles.
All the patterns in this project have useful descriptions to understand where you should use a particular pattern and where you shouldn’t. We recommend learning more about this project as it’s a must-have for every Java programmer. It has over 62 thousand stars on GitHub, so you can understand how popular it is.
Blynk is a prominent Internet of Things solution that allows to build web and mobile applications for the Internet of Things. You can use this platform to connect more than 400 hardware models such as ESP8266, Raspberry Pi, Arduino, and Raspberry Pi with drag and drop IoT mobile apps within a few minutes.
Blynk lets you connect your devices to design apps, the cloud, and analyze telemetry data. It is undoubtedly among the most prominent Java open source projects. If you’re interested in learning about IoT, then you should definitely start with Blynk. It is fast and provides you with proper connection management. Apart from those advantages, it allows you to connect with public and private servers. Its primary server is based on Java, so you can learn a lot from it.
If you’re interested in the Internet of Things (IoT), then you must get acquainted with Arduino. It is an open-source electronics platform based on simple software and hardware. An Arduino board can read various inputs such as a finger pressing a button, a tweet, or a light on a sensor and convert it into an output, such as turning on a torch, activating a system, or publishing something.
As a microcontroller platform, it’s very accessible and easy to use. It has cross-platform compatibility as it can run on Mac OSX, Windows, and Linux. Even though it is quite simple to use, its versatility and flexibility make it suitable for experienced programmers.
If you want to use Java in IoT, then learning about Arduino would surely be a significant step. Its GitHub repository has more than ten thousand stars, so you can understand how popular it is.
If you’re interested in gaming and video game development, then this project is perfect for you. Mindustry is a resource management strategy game written in Java. You can check its code and see how the game works. It has more than six thousand stars on Github, so you can understand how popular it has become. If you want to learn about video game programming, getting familiar with this project will surely help.