In Java, the final
keyword can be used to modify a method, which means that the method cannot be overridden by a subclass.
Here's an example of a final method:
public class Parent { public final void method() { // Method implementation goes here } } public class Child extends Parent { // The following method would generate a compile-error because it attempts to override a final method // public void method() { } }
Declaring a method as final
can be useful in cases where you want to ensure that the behavior of the method cannot be changed by a subclass. This can be especially important if the method has a critical role in the operation of the class, or if it depends on other methods or variables that might be changed by a subclass.
Note that you can also declare a class as final
, which means that the class cannot be subclassed. This can be useful in cases where you want to prevent a class from being extended or modified in any way.
You can find more information about the final
keyword in the Java documentation.