Explore core Java Stream API concepts, especially how to use the map method to transform and process string lengths in lists. Ideal for those learning about Java 8 functional programming and stream operations.

Explore core principles of Java enums, covering syntax, features, methods, and their use as type-safe constants. This quiz targets Java developers seeking a deeper understanding of enums’ behaviors and customization in projects.

Explore the essentials of transitioning from raw SQL to repository patterns in Java, focusing on designing efficient, maintainable DAO layers for backend development. This quiz covers key concepts, best practices, common pitfalls, and real-world scenarios relevant to Java data access layer design.

Explore the essentials of the Java Collection Framework with this beginner-friendly quiz covering key interfaces, classes, methods, and properties. Ideal for interview preparation and revising core collection concepts in Java.