Custom Functional Interfaces in Java: How and When to Create Them
Learn when and how to create custom functional interfaces in Java with examples, syntax, and use cases for clean, reusable, and testable functional code
Tutorials under 'Java 21'
Debugging and Logging Lambda Expressions in Java: Best Practices and Tools
Master debugging and logging in Java lambda expressions. Learn step-by-step techniques, tools, and patterns for streamlining error tracking and tracing in functional code
Lambdas in Java 8 vs Java 11 vs Java 21: What Changed?
Explore how lambda expressions have evolved from Java 8 to Java 21. Compare features, syntax, and real-world usage across modern Java versions.
Singleton Pattern in Java: Ensure a Single Instance Across Your App
Learn the Singleton Pattern in Java with real-world examples, code walkthroughs, best practices, anti-patterns, and modern implementation strategies