Sealed Classes and Interfaces in Java 25 | Complete Guide Mastering Sealed Classes and Interfaces in Java 25 With the release of Java 25 , developers now have more control over inheritance hierarchies through the use of sealed interfaces and sealed classes . This feature is a big step in strengthening object-oriented programming in Java. 🔍 What are Sealed Interfaces and Classes? Sealed types in Java allow developers to specify which classes or interfaces are allowed to extend or implement a given type. This enables controlled extension, useful in domain modeling , security, and compiler optimizations . 📌 Java 25 Code Example: Modeling a Cat Hierarchy 1. Sealed Interface: SIAnimal This sealed interface can only be implemented by the SCat class. 2. Sealed Abstract Class: SCat The abstract class SCat can only be extended by the listed subclasses: Lion , Tiger , BobCat , and Leapord . 3. Final Class: Lion ...