The final keyword may be applied to a class, indicating the class may not be extended (subclassed).
The final keyword may be applied to a method, indicating the method may not be overridden in any subclass.
public final class MyFinalClass
{
}
public class MyClass { public final String myFinalMethod() { <statements> } }
A class may never be both abstract and final. abstract means the class must be extended, while final means it cannot be.
A method may never be both abstract and final. abstract means the method must be overridden, while final means it cannot be.