🏗️ Object-Oriented Programming•📖 8 min read•intermediate

Final Keyword in Java - Variables, Methods & Classes

Master the final keyword. Learn how to create constants, prevent method overriding, and prevent inheritance.

Last updated: 15 January 2024

Final Keyword Usage

Final Variable: Value cannot be changed (Constant).

final int MAX_AGE = 100;

Final Method: Cannot be overridden by subclasses.

final void display() { ... }

Final Class: Cannot be inherited (extended).

final class MyClass { ... }