3 has been answered, so let me answer 1 and 2.

The answer to 1 is that you can't do this. To use multiple inheritance you need to have all classes involved cooperating successfully. If two different classes are being inherited from, and they have unrelated constructors, then you're not going to be able to construct something that is both at once.

The answer to 2 is that even when you can do this, multiple inheritance introduces a lot of complexities that can cause problems. Many people (me for instance) deliberately avoid using multiple inheritance. Others use multiple inheritance, but would generally agree that successfully doing so requires more skill than single inheritance. (And, BTW, single inheritance is often overused as well. The heart of the big benefits from OO is encapsulation, not inheritance.)

In reply to Re: Understanding 'Multiple Inheritance' by tilly
in thread Understanding 'Multiple Inheritance' by punkish

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