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

Easy (but why?):

class AbstractClass {
   AbstractClass(){ /* useful implementation */ }
}

class ConcreteClass1 extends AbstractClass {
     ConcreteClass1(){ super(); /* useful implementation */ }
     ConcreteClass1(boolean skip){ super(); }
}
class CustomizedClass1 extends ConcreteClass1 {
     CustomizedCLass1(){ super(true); /* useful implementation */ }
}