Upper vs Lower Bounds in Java Generics: When to Use extends vs super
Learn the difference between upper and lower bounds in Java Generics. Understand when to use extends vs super with PECS principle, wildcards, and real-world examples
Learn the difference between upper and lower bounds in Java Generics. Understand when to use extends vs super with PECS principle, wildcards, and real-world examples
Understand why `new T()` is not allowed in Java generics, exploring type erasure, exceptions, and best practices for designing generic APIs.
Learn how Java Enums replace constants with type-safe enumerations, ensuring cleaner code, better maintainability, and integration with frameworks
Learn how to declare and use basic Enums in Java applications for type safety, cleaner code, and better integration with frameworks and persistence
Learn when to use Enums, Classes, or Interfaces in Java. Explore type safety, extensibility, and design trade-offs with real-world examples and best practices
Master pattern matching for instanceof with Strings in Java 16. Learn syntax, examples, use cases, and best practices for cleaner type checks