Our Java instructor always asks us to prove that "Every java program is Object Oriented"
How would I go about proving this is true?
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2You can misuse Java to do procedure oriented coding like C. :) – Nishant Mar 05 '11 at 14:52
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21Tell him to prove "Every CS Professor is competent" – Andrew T Finnell Mar 05 '11 at 14:53
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1zzz.... you should switch your instructor. – uncaught_exceptions Mar 05 '11 at 15:00
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1It depends on your instructor's definition of *object oriented*, basically. All Java programs are using some objects (at least the `String[]` given to the main method), but I'm not sure we can name this already object oriented. – Paŭlo Ebermann Mar 05 '11 at 17:17
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Because you cannot have a main that isn't part of a class. Hence a class must exist in order to have a valid program.
But that's really nit-picking since you don't actually have to instantiate that class to do something. You can write a complete program with just static methods that instantiate no objects at all.
Whether it's a useful program without using objects like System.out is another matter.
Some OO purists will argue that Java isn't pure OO and they're probably right (in my opinion). That doesn't make it any less useful.
paxdiablo
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3You'll have still at least one object, namely the String[] given to the main method :-p – Paŭlo Ebermann Mar 05 '11 at 19:37
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See here.This defines the reason why Java is object oriented programming language.
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Saurabh Gokhale
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Every java program is not Object oriented due to the presence of primitives and statics.
shams
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