Showing posts with label object oriented. Show all posts
Showing posts with label object oriented. Show all posts

What is an Object ?

what is Object in Object oriented programming.object is an instance of a class.An object is an entity that has attributes, behavior, and identity. Objects are members of a class.Object in OOP, PHP, Question, what is an object,com object,object,objective,object oriented,object oriented,object oriented programing,OOP

Object in Object oriented programming

object is an instance of a class.An object is an entity that has attributes, behavior, and identity. Objects are members of a class.
Objects are accessed, created or deleted during program run-time.


Declaration of an Object in OOPs
ClassName objectName=new ClassName();


Example:
Car objCar= new Car();

Attribute in OOPs: Attributes define the characteristics of a class. In Class Program attribute can be a string or it can be a integer. 
Behavior in OOPS:  Every object has behavior.
Identity in OOPS:  Each time an object is created the object identity is been defined.


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Advantages of object oriented programming?

Advantages of object oriented programming,Code Re-usability,Code extensibility,Maintainability,Modularity,Modifiability

Advantages of object oriented programming:

  • Code Re-usability(Polymorphism,Interfaces): In OOPs objects created in one program can be reused in different programs.
  • Code extensibility: for addding new features or modifying existing objects can be solved by introducing new objects.
  • Catch errors at compile time rather than at runtime.
  • Maintainability :objects can be maintained separately, so u can easily fix errors.
  • Imrove error handling:We can use exceptions to improve error handling.
  • Modularity: can create seperate Modules.
  • Modifiability:it is easy to make minor changes in some classes as Changes inside a class do not affect any other part of a program.


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