Jump over parent constructor to call grandparent's

Question

The problem is this: I have an abstract class that does some work in its constructor, and a set of child classes that implement the abstract class:

class Abs         


        

Answer 1

One way I came up with:

class AbstractClass {
     AbstractClass(){ init(); }
     protected init(){ /* useful implementation */ }
}

class ConcreteClass1 extends AbstractClass {
     ConcreteClass1(){ init(); /* useful implementation */ }
}

class CustomizedClass1 extends ConcreteClass1 {
    CustomizedCLass1(){ init(); /* useful implementation */ }
}

In this way, CustomizedClass1 gets the behavior it needs from AbstractClass without passing through ConcreteClass1 initializations.

EDIT: Ouch, this doesn't work because the parent's constructors are implicitly called as one of the commenters pointed out, I think the easy way is to have different constructors.