Q# (pronounced as Q sharp) is a domain-specific programming language used for expressing quantum algorithms. It was initially released to the public by Microsoft as part of the Quantum Development Kit.
Java Alternatives
Java is described as 'General-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible' and is a leading programming language in the development category. There are more than 50 alternatives to Java for a variety of platforms, including Linux, Windows, Mac, BSD and Web-based apps. The best Java alternative is Python, which is both free and Open Source. Other great apps like Java are JavaScript, C++, C# and Rust.