Java 17 Features
Java 17 Features: A Complete Guide for Developers Java 17, released in September 2021, is a Long-Term Support (LTS) version and brings exciting updates and modern language enhancements. Let’s take a look at the top features every Java developer should know. 1. Sealed Classes Sealed classes let you restrict which classes can extend or implement a class or interface. public sealed class Shape permits Circle, Square {} final class Circle extends Shape {} final class Square extends Shape {} This gives you more control over class hierarchies and improves readability and maintainability. 2. Pattern Matching for instanceof Simplifies type casting when using instanceof checks: if (obj instanceof String s) { System.out.println(s.toUpperCase()); } No need for manual casting anymore! 3. Switch Expressions (Standard) Switch expressions were finalized in Java 17, enabling more concise syntax: Strin...