Data Abstraction is removing unneccessary datas.

Data Encapsualation is wrapping up the data into the single frame called class for further reuseablity.

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DIFFERENCE

1.REPRESENTATION OF ESSENTIAL FEATURE WITHOUT INCLUDING THE BACKGROUND DETAIL IS CALLED DATA ABSTRACTION WHILE COLLECTION OF ALL DATA AND METHOD INTO A SINGLE UNIT CALLED ENCAPSULATION

2.IN DATA ABSTRACTION WE WERE IGNORE ABOUT THE DETAILS REGARDING AN OBJECT TYPE WHILE ENCAPSULATION DESCRIBE DETAILS INFORMATION ABOUT AN OBJECT TYPE.

BY

DEEPAK(KOCHI TCS)

Abstraction is the ability to generalize an object as a datatype that has specific set of characterstics and specific actions.

Encapsulation is the process of localizing or hiding of information and process within the object. so that an object of a class can be served as black box the users. Best example for encapsulation is a class object (its a combination of interface behaviour and implementation)

A very simple example could be:

In case of a car a brake shows Abstraction in the way that it provides an interface that has contract to stop the car & shows the encapsulation in the way how the components are fixed into the brake system to provide the functionality.

Abstraction:
Denotes the essential properties and behaviour of an object that differentiate it from other objects. e.g: We use objects but we're not concerned with whats going behind the scene.

Encapsulation:
Its a process of binding the data and its behaviour into a single entity ie: class which makes as a reusable component in later part of the application development.