C++ Class and Objects | Classes | constructors | Overloading constructors | C++ Programming in Tamil

Опубликовано: 19 Май 2026
на канале: Sriramasubramaniam Nagarajan

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C++ Class and Objects | Classes | constructors | Overloading constructors | C++ Programming in Tamil

Classes

Classes are an expanded concept of data structures: like data structures, they can contain data members, but they can also contain functions as members.

An object is an instantiation of a class. In terms of variables, a class would be the type, and an object would be the variable.

An access specifier is one of the following three keywords:
private, public or protected.

constructors

This constructor function is declared just like a regular member function, but with a name that matches the class name and without any return type; not even void.

Overloading constructors

a constructor can also be overloaded with different versions taking
different parameters

Uniform initialization

Member initialization in constructors

Pointers to classes

Classes defined with struct and union

Classes can be defined not only with keyword class, but also with keywords struct and union.

Keyword struct is same as class but the difference is that the members of
Struct are public by default and class are private by default

Keyword union is same as class but the difference is that the members of union are public by default

Union can store only one data member at a time

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