Top 5 Features of JDK 17 with Complete Examples
Java 17, being a Long-Term Support (LTS) release, brings several new powerful features aimed at improving developer productivity, code clarity, and application performance. In this blog, we will explore the top 5 most exciting features of JDK 17, complete with runnable examples and in-depth explanations. ✅ Feature 1: Sealed Classes Sealed classes provide a way to restrict which classes can extend or implement a particular class or interface. It improves domain modeling and helps maintain strong control over inheritance, making the code more predictable and secure. Complete Example: // File: Animal.java public sealed class Animal permits Dog, Cat { public void makeSound() { System.out.println("Generic animal sound"); } } // File: Dog.java public final class Dog extends Animal { @Override public void makeSound() { System.out.println("Bark!"); } } // File: Cat.java public final clas...