Java force fields inheritance

Question

I know there have been lots of thread about Java inheritance (and i already read it), but they all stand for \"how it is\", and I need knowledge \"how to change it\". So, we hav

Answer 1

Yes, there is a way do to this. You can apply pattern which called "Template method". Here is an example

class Base {

     void someMethod() {
         int value = getValue();

         // calculate something
     }

     protected abstract int getValue();
}

class Derived extends Base {

    int getValue() {
         return 5;
    }
}

Where getValue() is your template method and you can insert any logic in your inherited classes implementations.