Java JDK 17 is a Long-Term Support (LTS) release, which means it will receive updates and support for a longer period than non-LTS releases. This release is packed with exciting new features, improvements, and bug fixes that make Java more efficient, secure, and easier to use. One of the most significant features in Java JDK 17 is sealed classes. Sealed classes allow you to restrict the types of subclasses that can be created from a class. This feature is useful when you want to ensure that only specific subclasses are allowed, making your code more predictable and maintainable.
Here’s an example of a record:
public record Person(String name, int age) { // ... } Instanceof pattern matching is a feature that allows you to combine the instanceof operator with a pattern variable. This feature makes it easier to write code that checks the type of an object and assigns it to a variable in a single step. java jdk 17
public sealed class Shape permits Circle, Rectangle { // ... } public final class Circle extends Shape { // ... } public final class Rectangle extends Shape { // ... } Records are a new type of class in Java JDK 17 that allows you to create simple, immutable data classes with minimal boilerplate code. Records are useful when you need to represent data that doesn’t require complex behavior. Java JDK 17 is a Long-Term Support (LTS)