Java is a programming language widely used for web applications and mobile apps due to its robustness and scalability. Java backend developers are in high demand in the freelance market and the IT industry. The demand for Java programmers will continue to grow over time.Here are some of the top technologies that you should learn as a freelance Java backend developer:Spring FrameworkThe Spring Framework is an open-source framework that provides enterprise application development support for Java web applications. It's used by more than 3 million developers and has been downloaded more than 40 million times.Spring provides support for dependency injection
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