Java is the undisputed king of enterprise software development and one of the most popular programming languages in general.
With over 100 million repositories, GitHub is like the Library of Alexandria in software development. GitHub contains frameworks, libraries, tutorials, books, and even programming languages.
If you are a Java developer and want to hone your Java skills, then GitHub is like a gold mine for you. But finding the right repository on GitHub is like finding a needle in a haystack.
Java design patterns
Software design patterns are reusable generic solutions for software developers to solve recurring problems in software development. It also provides a common vocabulary for discussing a common problem among software engineers and architects. Design patterns can improve code quality and coding speed with battle-tested and proven development paradigms. The best way to learn design patterns is to see them in action, i.e., through code examples.
This great GitHub repository has Java implementations of all types of design patterns: from the most common and oldest design patterns (Iterator, Singleton) to the most modern design patterns (Microservices Aggregator, Serverless). This GitHub repository will not only improve your programming skills, but also make you a better and more productive developer.
Interview
Interviewing for a programmer job is difficult. Many people just go to the interview half-prepared and then blame their luck for not getting the job. Being thoroughly prepared for your interview will increase your chances of landing your dream job. This GitHub repository contains everything you need to prepare for interviews: YouTube videos, articles, live coding practice, data structures, algorithms, interview books, and video lectures. Interviews also contains Leetcode for common Java coding problems.
Algorithms
If you are a software engineer, algorithms are the bread and butter of your daily life. Using the right algorithms can improve software performance. Often, the ability to choose the right algorithm for a given constraint (CPU complexity, memory consumption) is indicative of the quality of a software engineer. It is not surprising that algorithms are actively used in the interview process: be it tech giants like Google, Microsoft, or startup companies.
If you’re a beginner or intermediate Java developer, you’ll find this GitHub repository useful on a regular basis. If you are a seasoned Java developer with years of experience, this GitHub repository will still be useful to you.
The real world
If you are developing modern Fullstack Java applications, chances are high that you are using one of the latest versions of JavaScript SPA in the Frontend and Java in the Backend. Realworld offers the development of a Conduit application (a clone of Medium) using almost all combinations of Frontend and Backend. The creators call it the “mother of all demo apps” because it allows you to develop real applications. Given the huge catalog of front-end and back-end technologies it supports, Realworld lives up to its slogan.
Currently, it supports all possible JavaScript Frontend frameworks (e.g. React, Angular, Vue, Svelte, AngularJS, Ember.js, Aurelia, Vanilla JS…) and all possible Backend frameworks in all major programming languages. In Java, it supports Quarkus and Vert.x.
Great Java
It often happens to us that we need to find something related to Java and spend hours searching for it on Google. Luckily for Java developers, this GitHub repository can come to the rescue in such a situation. Awesome Java contains almost everything related to Java and is like a dictionary. Whether you’re looking for a ByteCode manipulator, machine learning libraries, or utility program libraries, Awesome Java has a link to it.