What experience and knowledge have you gained recently?

Recently, I have been deeply studying new features of Java, including working with streams (concurrency) and improvements in the Collections API. I also practiced using the Spring Framework to create RESTful services and learned the basics of working with databases through JPA/Hibernate.

Additionally, I paid attention to modern build tools and dependency management, such as Maven and Gradle, and studied testing with JUnit and Mockito.

This experience has enabled me to create more efficient and maintainable applications in Java.