The document discusses the key concepts of object-oriented programming (OOP) in C++, including objects, classes, abstraction, encapsulation, inheritance, polymorphism, overloading, and exception handling. Objects are instances of classes that contain data members and member functions. Classes define the blueprint for objects and allow data and functions to be bundled together. Abstraction hides unnecessary details and focuses on essential information. Encapsulation binds data and functions together within a class. Inheritance allows code reuse through deriving a new class from an existing class. Polymorphism and overloading allow functions to operate on different data types. Exception handling manages errors at runtime.

1. C++ OOPS Concept
Boopathi K
Amrita University
boopathi@boopathi.me
February 5, 2014
Boopathi K (Amrita Vishwa Vidyapeetham)
OOPS Concept
February 5, 2014
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2. Features of Object Oriented Programming
1
Objects
2
Classes
3
Abstraction
4
Encapsulation
5
Inheritance
6
Polymorphism
7
Overloading
8
Exception Handling
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OOPS Concept
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3. Object Oriented Programming
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OOPS Concept
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4. OBJECTS
Objects are basic unit of OOP.
They are instance of a class.
Consists of various data members and member functions.
These data types and member functions are bundled together as a
unit is called objects.
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OOPS Concept
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5. Classes
It is similar to Structure in C.
Class is user defined data type.
It holds own data members and member functions.
Class can be accessed and used only by instance of that class.
It is basically blueprint for object.
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OOPS Concept
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6. ABSTRACTION
Definition
A model complex of a system that includes only the details essential to
perspective of the viewer of the system.
An Abstraction is a model of a complex system that includes only the
essential details.
Abstractions are the fundamental way that we manage complexity.
Helps to manage complexity of a large system.
Support our quality goals of modifiability and reusability.
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OOPS Concept
February 5, 2014
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7. Encapsulation
It can be said Data binding.
It binds variables and functions together inside a class.
Object Oriented Programming provides you to place, data and
relevant functions together in the same object.
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OOPS Concept
February 5, 2014
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8. Inheritance
Code reusability.
Process of forming new class from an existing class.
Inherited class is called Base class.
class which inherits is called Derived class.
Pros
Helps to reduce code size.
Types of Inheritance in c++
Single inheritance.
Multiple inheritance.
Hierarchical inheritance.
Multilevel inheritance.
Hybrid inheritance.
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OOPS Concept
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9. Polymorphism
It makes the code More readable.
Function with same name but different arguments.
Functioning is different.
Poly refers to many.
Types of Polymorphism
Compile time Polymorphism.
Run time polymorphism.
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OOPS Concept
February 5, 2014
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10. Overloading
It is a part of Polymorphism. Existing function or operator is made to
operate on new data type.
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OOPS Concept
February 5, 2014
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11. Exception Handling
It is part of Object Oriented Programming Concept.
Used to handle unresolved exception or errors during runtime.
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12. Thank You
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