Re: Some articles on misconceptions about C++
Maciej Sobczak wrote:
Sushrut Sardeshmukh wrote:
C++, for example, has better support of OO than does Java,
despite that being the only paradigm Java claims to support.)
I have no intensions to challenge you.
However, I am curious to know how C++ supports OO better than Java.
Cannot speak for James, but my guess is multiple inheritance.
Exactly.
One can argue about the need to provide it for inheritance for
implementation---Smalltalk didn't, and it is the father of OO
(or at least of the term). But Java's "interface" are too
limited to make them usable even as base classes for interface
(irrelevant in Smalltalk, since it wasn't statically typed). An
interface defines a contract, and you need some means of
enforcing that contract, which Java's interfaces simply don't
allow. When I did do a large project in Java, we ended up
almost not using interface at all---most of our interfaces were
what Java called abstract classes, and we used various more or
less complicated work-arounds for the lack of multiple
inheritance.
True that Java does not have operator overloading.
This has nothing to do with OO and you are right that in this aspect
there is no point in comparing two languages in their support for OO -
but I would say that not having this feature in a general purpose
language is a bad joke anyway. ;-)
Sort of, depending on how broad your definition of "general
purpose" is. Obviously, you can't do anything scientific or
mathematic without them, and you can't do commercial
applications which require decimal rounding, but you can still
do some pretty fancy GUI front-ends (and I never needed them
back when I was doing real-time embedded software, but Java has
other problems there).
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