Objects in C++
C++ programming primarily aims to incorporate object-oriented features into the C programming language, with classes serving as the core element supporting object-oriented programming. Classes, often referred to as user-defined types, play a pivotal role in this context.
In C++, a class serves to define the structure of an object, seamlessly combining data representation and methods for manipulating that data into a cohesive unit. The components within a class, encompassing both data and functions, are collectively termed as members of the class.
Objects in C++ Download PDF
An “Object” in C++ represents an instance of a class. When a class is defined, it does not allocate memory. However, upon instantiation, when an object is created, memory allocation takes place. The process involves defining a class in C++ using the “class” keyword, followed by the class name.
Classes and Objects constitute fundamental concepts in Object-Oriented Programming, revolving around real-life entities. A class functions as a user-defined blueprint or prototype, serving as the basis for creating objects. It embodies a set of properties or methods common to all objects of a particular type.
Classes & Objects in Detail:
|Class member functions
|A member function of a class is a function that has itsdefinition or its prototype within the class definition likeany other variable.
|Class access modifiers
|A class member can be defined as public, private orprotected. By default members would be assumed asprivate.
|Constructor & destructor
|A class constructor is a special function in a class that iscalled when a new object of the class is created. Adestructor is also a special function which is called whencreated object is deleted.
|C++ copy constructor
|The copy constructor is a constructor which creates anobject by initializing it with an object of the same class,which has been created previously.
|C++ friend functions
|A friend function is permitted full access to private andprotected members of a class.
|C++ inline functions
|With an inline function, the compiler tries to expand thecode in the body of the function in place of a call to thefunction.
|The this pointer in C++
|Every object has a special pointer this which points tothe object itself.
|Pointer to C++ classes
|A pointer to a class is done exactly the same way apointer to a structure is. In fact a class is really just astructure with functions in it.
|Static members of a class
|Both data members and function members of a classcan be declared as static.
You can download the Objects in C++ in PDF format using the link given below.