Inheritance in the java class heirarchy

Question

ok two questions.
1. in the java class heirarchy, do the subclasses inherit all of the concrete methods from the superclass, that the subclass has not overridden. Or just some of them as Sun has deemed necessary?
2. In the situation where you have a custom class that extends another class, can you invoke all of the constructors in the superclass using the super keyword, or just some of the constructors?
Thanks.

Answer 1

Fguy wrote:
ok well the Java Tutorial is clear enough on inheritance I suppose. A subclass inherits all of the public and protected members of its parent so I suppose in as much as Sun probably wrote some private methods then that would answer that question.
But it isn't quite so clear on invoking super class constructors. You mention "the usual access rules" which is fair enough, but the Tutorial isn't too clear on those rules that I can see. Al I can see is the constructor of the superclass can be invoked from the subclass. http://java.sun.com/docs/books/tutorial/java/IandI/super.html
But you are implying that there are in fact access rules that can prevent a superclass constructor from being invoked from the subclass. Can you give an example? Would it be a situation where said superclass constructor is accessing one of it's private methods? or does that not matter?
Thanks.If the superclass has an inaccessible constructor (for example, a private constructor which can only be invoked from the superclass itself), there you go.