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To hide the data in a class in C++, simply declare the data private, and then manipulate the data using the public interface of the class.
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Data hiding is a property that only relevant information is exposed to the user and rest of the informations remains hidden from the user
Public members in C++ have accessibility to any function that has scope to the instance of the class, whereas private members have accessibility only to functions of that class.
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b+b+b+c+c+c+c =3b+4c
-define class with necessary data member & member function. -create object of that class. -communication.
In class default members are private and in structure default members are public ,When ever you want to hide data from outside functions then you can use class.But in ANSI C we can hide data by using private access specifier.
The general order of initialization is:Base class objects (if present)Member data objectsConstructor function code
Yes.
these are difference in between c and c++: a) C is a SPL and C++ is a OOP. b) C has not concept of object but C++ has this feature. c) C has not 'class' name data type but C++ has.
Basic types (primitive data types) have no methods associated with them.
Object-oriented programming is a feature in C++ that allows you to better model real-world objects. An object is an instance of a class, which is a data structure in C++ that allows you to group different, but related types of data together.
No.
Structures are the same as classes in C++. The only difference is that structure members are public by default while class members are private by default, but both define a class of object and both are initialised via a class constructor initialisation list. struct my_object { my_object(const int data): m_data(data) {} private: int m_data; }; The above struct is no different to the following class: class my_object { int m_data; public: my_object(const int data): m_data(data) {} };
An object in C++ is an instance of a C++ class.
There are no classes in C and therefore no way to encapsulate information. Although it is possible to use structures containing both data and pointers to the functions that operate upon that data, and thus emulate object-oriented behaviour, all data is publicly accessible. To be hidden, data and implementation details need to be made private and there is no such mechanism in C.
s.