Master Modern Java like a Pro: Functional Validation with Predicates — Part 5

🔒 This is a Medium member-only article. If you’re not a Medium member, you can read the full article for free here.

👉 Show your support by clapping, sharing, and dropping your thoughts in the comments — let’s build better Java together.

Follow me on Medium for more productive articles and guides.

Previous Part 4:

Master Modern Java like a Pro: Pattern Matching in Switch — Part 4

👋 Hey developers,

Welcome to Part 5 of our “Master Modern Java like a Pro” series.

So far, we’ve explored:

• Java Records for clean data modeling
• Strategy Pattern + Lambdas for flexible decision-making
• Streams API for clean data transformations
• Pattern Matching in Switch for modern branching logic

Today, let’s talk about a modern and composable way to validate data using Java’s built-in Predicate<T> functional interface.

If you’re still writing if-else validation logic scattered across your service layers, this article will help you clean it up with reusable, readable, and testable code.