What is the difference between an object and a class?

 Classes and objects are separate but related concepts. Every object belongs to a class and every class contains one or more related objects.  Ø      A Class is static. All of the attributes of a class are fixed before, during, and after the execution of a program. The attributes of a class don't change. Ø       The class to which an object belongs is also (usually) static. If a particular object belongs to a certain class at the time that it is created then it almost certainly will still belong to that class right up until the time that it is destroyed. Ø       An Object on the other hand has a limited lifespan. Objects are created and eventually destroyed. Also during that lifetime, the attributes of the object may undergo significant change.
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vishnu bobade

  • Sep 8th, 2005
 

Classes and Objects: Classes are explained, focusing on member data and methods, as well as access control. Constructors and destructors are introduced, and the difference between interface and implementation is emphasized.  

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neeraj

  • Sep 15th, 2005
 

paper

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v.chandrasekhar

  • Jan 17th, 2006
 

OBJECTS: Objects are the basic building concepts of oops.Objects are the basic runtime entities in an object oriented sysyem...In other words data and function which combine into a single entity is called object.CLASS: A class combine data(called data members)and functions(called member functions)Class is a logical framework that defines the relationship between it's members and act as a templatefor creating it's variable called objects.

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nitin_chawda

  • Apr 15th, 2006
 

Class is a userdefined datatype with data members and member functions which can be public or privately accessed depending on access specifiers.

Objects are instances of classes which identifies the class propeties.A particular class can have it's own class which makes it identifying it's object.

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satyendra n. Das

  • Aug 2nd, 2006
 

Class -Classe(s) defines object

Object -Object can't define classes

Class -Object properties can access by class instance on which that object is residing

Object-Should be belonging to any of the class

Object - Can created and destroyed as your necessity.

Class-One class can define any no of Object

Best of Luck

Satya.........

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Sathyanarayanan Ramakrishnan

  • May 21st, 2007
 

An object realizes its behaviour and state from its skeleton called class

In other words a realization of a class is an object

Cheers

Sathya

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nishant

  • Jul 8th, 2007
 

I would like to add few more points:

-A Class is a blueprint of an object or we can say that its a template of an object.
-Objects are memebers of a class.
-A class decribes all the attributes of object.

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gaurav

  • Jul 28th, 2007
 

Class: class is a group of a object that shares common property or class is a collection of methods and functionality.

Object is real time entity of class or it is a instance of class

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wafa

  • Jul 30th, 2007
 

class is a group of more than one object and it share common property of object.give anyone any example?

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gurpreet.ronak

  • Oct 18th, 2007
 

Class is a combination of data member & member function where object is used for calling function

In class we declare
In object we call

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Abhishek

  • Dec 26th, 2012
 

Both are hardly interrelated.

Object
1. Basic runtime entities in object oriented environment.
2. Objects belong to only one class.
3. Objects are a implementation of class.

Class
1. A way to bind data and associated functions together.
2. Class have many objects.
3. Class is a template for creating objects.

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jaya jaswani

  • Feb 2nd, 2013
 

A class is a user defined data type which is used to declare objects and define the methods and functions to use the object.

An object is an instance of a class. it can be generated according to our needs whenever we want to use that. but classes once declared cant destroyed.

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Aavi loyal

  • May 7th, 2014
 

Object:- In oop , object is an identifiable entity which has some characteristic and behavior. Object is also treated as run time or logical entity that has data as well as piece of code to manipulate this object. Object can be define into physical or logical form.

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Silly Selzin

  • May 30th, 2014
 

class is a logical construct
object has a physical reality

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Gayathri.G.Nair

  • Mar 15th, 2015
 

classes do not hold any information,while a object does. we can create sub-classes,but cant sub-objects.

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surbhi jaiswal

  • Mar 30th, 2015
 

In class,memory space is not allocated when it is created.while in object,memory space is allocated when it is created.

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veerendranath

  • Apr 6th, 2015
 

class is blue print of an object.
in general a class does not occupy any memory but an object will occupy memory
object::
"allocation of memory to an object is nothing but allocation of memory for data members "

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Eric Nantel

  • Apr 23rd, 2015
 

An object is a class instance.

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Sourav Gupta

  • Dec 2nd, 2015
 

Class is a logical existence but object is a physical existence.

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sunil

  • Dec 15th, 2015
 

A class can be object but an Object cant be class

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Ethn

  • Dec 20th, 2015
 

When you overload an operator, the number of parameters is fixed, but the types have to be different. Function overloading does not have this restriction. Although if the number of parameters does not change when you overload a function, the types of the parameters must change.

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Jumana iqbal

  • Apr 24th, 2016
 

Class is a user degined data type, the variables of class known as object, which are the central focus of object oriented programming

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Minh Nguyen

  • Jun 27th, 2016
 

A class is an user-defined data structure and an object is an instance of that class.

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