In Java the only place to my knowledge where the final keyword is required is to make a variable reliably available to an anonymous class (since the compiler does some trickery under the covers requiring …

Oct 5, 2016 · 85 Your Java programming style and thoughts are fine - don't need to doubt yourself there. On the other hand, I find it a lot less useful with locals and parameters, and usually I avoid marking …

May 12, 2016 · 55 It seems Java has had the power to declare classes not-derivable for ages, and now C++ has it too. However, in the light of the Open/Close principle in SOLID, why would that be useful? …

Since Java 8, this is not a valid reason anymore: any non-modified variable is considered by the compiler as effectively final, so that the final keyword don't need to be added in the proposed example.

As a result, when you use the final keyword on an object, you are only saying that the reference is read-only, the object itself is still mutable. It might have been used more if it did actually make the object …

Jul 1, 2015 · I came across the interesting topic about final method parameters and that they essentially don't provide much advantages. I wondered if it would be sensible to mark only those method …

Unfortunately, the Java language designers chose a different default: variables&parameters are by default non-final, and final variables&parameters need to be declared with the final keyword.

Nov 21, 2019 · In C#, methods are "final" by default (in the Java meaning of that term), and one has to add the virtual keyword explicitly to make them overrideable. In Java, it is the other way round: every …

17 I know that final keyword is used to prevent virtual method from being overriden by derived classes. However, I can't find any useful example when I should really use final keyword with virtual method. …

You can consider the Java API itself and how often you will find the usage of the 'final' keyword. In fact, it is not used very often. It is used in cases were performance might get bad due to the dynamic …