Final

The keyword Final enforces that the class or method can no longer be inherited from.

public class Fruit {
	public abstract void eat();
}
 
 
public final class Strawberry extends Fruit {
	@Override
	public final void eat() {
		System.out.println("I love to eat strawberries!");
	}
}
 
public class ChileanStrawberry extends Strawberry {
	//Illegal!
}

![Note] If the class is final, then all the abstract members it inherits can optionally also have “final” on it too.