github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

lightbend helps digital businesses build, secure, and operate low-latency apis, microservices, and data streams. our customers create massively concurrent, highly transactional cloud systems for digital experience, data, ai inference, and edge workloads.

play framework - the high velocity web framework for java and scala

in-depth, to-the-point tutorials on java, spring, spring boot, security, and rest.

this c# tutorial helps you master c# programming from scratch and shows you how to apply c# programming effectively.