OOPS - difference between data encapsulation vs abstraction

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difference between data encapsulation vs abstraction

Total Answers and Comments: 9

Last Update: October 12, 2009 Asked by: Manpreet kaur

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Submitted by: sabrish

Encapsulation is nothing but hiding information also called datahiding...
while abstraction denotes the essential characteristics of an object which differentiates from other kinds of object...

Above answer was rated as good by the following members:
sripudi, mandeepx81

August 28, 2006 03:51:38

mani

RE: difference between data encapsulation vs abstracti...

Abstraction is achieved through encapsulation..Abstraction solves the problem in the design side while encapsulation is theimplementation.

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November 01, 2006 00:05:05

bijal

Member Since: January 2006 Contribution: 6

RE: difference between data encapsulation vs abstracti...

Abstraction is virtual class design.

Before actually defining class developer will think about what all properties methods and event will be there in my class.

Whereas encapsulation is data hiding.

At the time of class defenation developer will think about which should display to end user and which should not.

In Short Abstraction is Collection of data and Encapsulation is Exposure (or grouping) of data in appropriate access specifier .

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February 20, 2007 07:34:42

Abhi

RE: difference between data encapsulation vs abstracti...

Abstraction means datahideing.That means we use the object wethout knowing the source code of the class.

Encapsulation is a mechanism by which we desigm our class such a way that if we change our class in fuature we dont need to change the classes which are depending on our classes.

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November 27, 2007 11:23:46

sabrish

RE: difference between data encapsulation vs abstracti...

Encapsulation is nothing but hiding information also called datahiding...
while abstraction denotes the essential characteristics of an object which differentiates from other kinds of object...

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Overall Rating: +1

November 11, 2008 01:34:14

dinu_26

Member Since: November 2008 Contribution: 5

RE: difference between data encapsulation vs abstraction

Abstraction is used for hiding the unwanted information and giving revelant information.

Eg: Three set of customers are going to buy a bike First one wants information about the style. Second one wants about the milage. Third one wants the cost and brand of the bike.So the salesperson explains about the product which customer needs what. So he hiding some information and giving the revelant information.

Encapsulation is combines one or more information into a component.

Eg: Capsule is mixed with one or more medicine and packed into the tube. so its related and acting in two moducles.

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March 04, 2009 23:39:20

anjali4788

Member Since: February 2009 Contribution: 1

RE: difference between data encapsulation vs abstraction

Abstraction is the representation of data that how we represent it whereas encapsulation is hiding of unnecessary details from user.

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July 11, 2009 09:18:11

PNVRKPrasad

Member Since: July 2009 Contribution: 4

RE: difference between data encapsulation vs abstraction

Encapsulation and abstraction both solve same problem: Complexity; but in different dimensions.

Abstraction: Hides the implementation details of your methods. Provides a base to variations in the application which can grow over a period of time.

Encapsulation: Hides the private data elements of the class and exposes only the required things to the clients.

Both are powerful; but using abstraction require more skills than encapsulation and bigger applications/products can not survive with out abstraction.

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September 03, 2009 07:17:06

mandeepx81

Member Since: September 2009 Contribution: 1

RE: difference between data encapsulation vs abstraction

It is wrong to call Encapsulation as only data hiding. Though this defination is usually taught in school but now according to latest OOPs principles its considered incomplete.

According to the book Design Patterns Explained

At conceptual level:

Encapsulation means any type of hiding. It can be either data behaviour implementation or derived classes or any other thing.

Abstraction means to generalize or conceptualize: to step back from the more concrete to the more conceptual or abstract.

At implementation level:
Encapsulation is achieved by inheritance aggregation or composition.

Abstraction is represented by using abstract classes to represent a generalized version of set of related classes.

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October 12, 2009 02:32:19

rajeshspandian

Member Since: September 2006 Contribution: 1

RE: difference between data encapsulation vs abstraction

Encapsulation is wrapping up the data into a single unit (classes).

Abstraction is something like data Hiding.

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