Object Oriented Programming
Programming is a set of
instruction given to the computer to do a particular job. In generally program
can be organized as what is happening (Code) and what is being affected (Data).
Object Oriented Programming (OOP) is a powerful way to approach that job. When
the computer was first invented programming was done by using binary machine
instruction. As long as the program has fewer instructions like hundred this
approach worked. As programs growth and increasing complexity assembly language
was invented. It’s helped programmers to handle large programs using symbolic
representations. As the complexity of programs increase high level languages
were introduced. When these high level languages began to reach their breaking
point structured programming language such as C invented.
Object Oriented Programming Concept
Objects
OOP is based on the concept of ‘objects’. The object is the real life thing which has characteristics and behaviors. In programming that called attributes (variables/data members) and methods (functions).
Class
Class is a specification of an object or template for creation of object.
Using above class lets create object call sam,
Person sam = new Person();
sam is a variable type of class Person. It is a instances of class Person. Using new keyword we can create an end number of objects in the Person class.
Abstraction
Abstraction is a filter out the unnecessary details and capture only the essential features about the object in order to simplify and increase efficiency.
Encapsulation
Encapsulation is binds the member function and data member into a single class. In another point it is hiding and protect several data from outside when it's necessary.
Inheritance
Inheritance is a class can ‘Inherit’ properties from another base class and define a new class with added features.
Polymorphism
The concept of polymorphism which means many (poly) forms (morphs).There is a two type of polymorphism,
2. Static polymorphism - compile time. (Overloading)
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