As many as you want to be, and more than what you think there are!
to access the data from one or more classes to the sub classes
Java is an object oriented language, and it works with classes and objects.
C isn't an object oriented language... C++ is, because it has classes.
classes
C++ is an extension of C; object-oriented capabilities - basically, the possibility of defining classes and of creating objects based on those classes - have been added to the original C.C++ is an extension of C; object-oriented capabilities - basically, the possibility of defining classes and of creating objects based on those classes - have been added to the original C.C++ is an extension of C; object-oriented capabilities - basically, the possibility of defining classes and of creating objects based on those classes - have been added to the original C.C++ is an extension of C; object-oriented capabilities - basically, the possibility of defining classes and of creating objects based on those classes - have been added to the original C.
There are no classes in C -- it is not an object oriented language. As such there is no FileInfo class.
A package is basically a group of related classes.
David A. Taylor has written: 'Object-oriented technology' -- subject(s): Database design, Object-oriented databases, Development, Computer software 'Object-oriented information systems' -- subject(s): Management information systems, Object-oriented databases, System design
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Nope. And Do not attempt.An objected oriented language must have the following features built in in the language itself:Inheritance (hierarchy of classes)Polymorphism (this one is almost impossible for non-OO language to achieve). That is, different classes or objects have the same name of operation but implemented differently, and hence the outcome are different as well.Encapsulation, not just the data members, but also the methods/operations or functions. For non-OO language, this is will not be an easy one, if it is possible to start with.
Object is the class from which every other class or object in .Net derives from. This is designed in this way to bring out the pure object oriented functionality and thus make .net a pure object oriented technology It's only because of this design that even you customs classes is having methods like GetHashCode(), ToString(), Equals(), ReferenceEquals() etc which are originaly methods defined in object class and got inherited to your type because of this OO Design
Making it's appearance in the late 1950's and early 1960's, object-oriented programming (OOP) was developed and first used at Massachusetts Institute of Technology.