Exception in thread "main" java.lang.ClassCastException: class Superclass cannot be cast to class Subclass (Superclass and Subclass are in unnamed module of loader 'app') at BadDowncast.main ...

Declare classes final in Java to prevent inheritance, and ensure the immutability of objects (like String). When a class should never change state after creation. …see more ...

Welcome to the Java 101 study guide. This guide complements " Class and Object Initialization." It provides a glossary of terms specific to that article, new homework, solutions to last month's ...

Java notes with proper examples to revise complete Java language in one day, you can find more details on my blog ProgrammingMitra - java-scjp-notes/01. Declaration And Access Control.md at master ...

Explore the Subclass Sandbox design pattern in Java, perfect for allowing flexible behavior customization in object-oriented programming. Ideal for game development and extending class behavior. The ...