Java 8 functional programming - Predicate Functional Interface | Real World Examples | Part 2

Pubblicato il: 23 giugno 2026
sul canale di: Advanced Tech Tutor (ATT)

Welcome to Part 2 of the Functional Interface & Lambda Expressions Series!

In this video, we dive deep into the Predicate Functional Interface, one of the most important functional interfaces introduced in Java 8.

A Predicate is used to test conditions and return a boolean result. It is heavily used in filtering, validation, authorization, eligibility checks, business rule engines, Stream API operations, and real-world enterprise applications.

📚 Topics Covered:

✔ What is Predicate?
✔ Functional Interface Overview
✔ test Method Explained
✔ Predicate with Lambda Expressions
✔ Filtering Data using Predicate
✔ Predicate Chaining
✔ and Method
✔ or Method
✔ negate() Method
✔ Real-World Validation Examples
✔ Business Rule Engine Examples
✔ Predicate with Stream API
✔ Interview Questions & Answers

💻 Examples Covered:

✅ Check Even/Odd Numbers
✅ Check Positive Numbers
✅ Employee Salary Validation
✅ User Eligibility Validation
✅ Loan Approval Rule Engine
✅ Fraud Detection Rules
✅ Product Filtering
✅ Stream API Filtering
✅ Predicate Chaining Examples

🔥 Real-World Use Cases:

• Input Validation
• Authorization Rules
• Eligibility Checks
• Fraud Detection Systems
• Workflow Engines
• Rule Engines
• Search Filters
• Spring Boot Applications

🎯 Perfect For:

✔ Java Beginners
✔ Java Developers
✔ Spring Boot Developers
✔ Interview Preparation
✔ Backend Engineers
✔ Software Engineers

📌 Functional Interface Series:

Part 1 - Introduction to Functional Interfaces & Lambda Expressions
Part 2 - Predicate Functional Interface
Part 3 - Consumer Functional Interface
Part 4 - Function & Supplier Functional Interfaces
Part 5 - Method References

If you found this video useful, don't forget to:

👍 Like
🔄 Share
🔔 Subscribe

for more Java, Spring Boot, AWS, Design Patterns, System Design, Microservices, Kafka and Interview Preparation content.

#Java #Predicate #FunctionalInterface #LambdaExpression #Java8 #FunctionalProgramming

In questa pagina del sito puoi guardare il video online Java 8 functional programming - Predicate Functional Interface | Real World Examples | Part 2 della durata di ore minuti seconda in buona qualità , che l'utente ha caricato Advanced Tech Tutor (ATT) 23 giugno 2026, condividi il link con amici e conoscenti, su youtube questo video è già stato visto 5 volte e gli è piaciuto 1 spettatori. Buona visione!

1,146