Java 17 Sealed Classes Explained | Complete Guide with Real-Time Examples & Interview Questions
Want to control which classes can extend your class? Java 17 introduced Sealed Classes to solve exactly that! 🚀
In this video, you'll learn everything you need to know about Sealed Classes, one of the most powerful features introduced in Java 17. We'll understand why Sealed Classes were introduced, how they help restrict inheritance, and where they're used in real-world Java applications.
📚 What You'll Learn
What are Sealed Classes?
Why were Sealed Classes introduced?
sealed Keyword
permits Keyword
final, sealed, and non-sealed Child Classes
Sealed Interfaces
Real-World Examples
Sealed Classes vs Final Classes
Java Interview Questions
💼 Real-World Use Cases
Banking Applications
Payment Systems
Vehicle Management Systems
State Machines
Domain-Driven Design (DDD)
Secure API Models
Enterprise Java Applications
Whether you're preparing for Java interviews, learning Spring Boot, or upgrading your Java skills, this video will help you master Sealed Classes with simple explanations and practical examples.
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