Encapsulation, Data Hiding, Data Abstraction

Question

Hi Everyone, Please let me know the solution of below question : Q.1) Difference between Encapsulation, Data Hiding and Data Abstraction ( Theory & their Program) ? Thanks and Regards

Shivanand Arur · Answer

Hello Rushal, Encapsulation and Abstraction are the most basic concepts of Object Oriented Programming Languages... C# is an Object Oriented Language... Now let me give you an example here... Starting from Class, Object, Encapsulation and then Abstraction. What is a Class? Basically we can think of a Class as a Blueprint of an Object. Suppose there is an Architect who is planning to develop / build a Tower. So what will he do first?He definately won't start developing the tower right away, He will first create various diagrams which are nothing but the Blue Print of the tower. So you can think of the Class as a Blueprint of an Object... This class will contain various methods, properties which actually tells us about an Object. What is an Object? According to my example above, An Object will be an actual Tower. So in OOPS and Object is nothing but a real world entity which contains various properties and does a particular task. Only the Class defines the properties and methods of the Object, but the Object or the Instance of the Object is the real thing which actually implements / uses those properties and methods. Now, What is Encalsulation? Basically Encapsulation is an OOP technique where you just hide all the functionality of an Object. When we create a Class and we write some properties and methods in it, it means we are hiding the characteristics of that Object. Inshort writing the code inside a class and not showing it to the outside world is called "Encapsulation". Data Hiding is nothing but Encapsulation. eg: public class Vehicle { public string vehicleName { get; set; } // Property1 public string vehicleType { get; set; } // Property 2 public void MoveLeft() // Method1 (This is the functionality of the Object) { Console.WriteLine("Vehicle will move left"); } public void MoveRight() // Method2 (This is the functionality of the Object) { Console.WriteLine("Vehicle will move right"); } } public class AllVehicles() { public static void Main() { Vehicle myVehicle = new Vehicle(); myVehicle.vehicleName = "Audi Q7"; myVehicle.vehicleType = "Car"; myVehicle.MoveLeft(); myVehicle.MoveRight(); } } So as you can see in the above, the Class has encalsulated (hiding the properties and methods of an Object). So if you create any other class called Human, it may not know what are the Properties and methods of a car. What is Abstraction? Abstraction means showing only a particular functionality of an Object. A simple example is, when a person buys a car he will not focus on what are the internal parts of a car or what material did the company used to develop this car's machine. Infact he'll be interested in its performance, look and feel and milage. These are some links which will help u understand the concepts in a much better way!!! http://discuss.itacumens.com/index.php?topic=19653.0 http://www.c-sharpcorner.com/UploadFile/eecabral/OOPSand.NET211102005075520AM/OOPSand.NET2.aspx http://www.dotnetfunda.com/articles/article1036-basic-concepts-of-oop-abstraction-explained.aspx http://forums.asp.net/t/1258933.aspx/1 http://www.dotnetfunda.com/articles/article1003-basic-concepts-of-oop-encapsulation-and-inheritence.aspx http://www.roseindia.net/answers/viewqa/Java-Beginners/7471-Encapsulation-VS-Abstraction.html H ope this helps u out... Please mark the answer as accepted if it helped!!! Thank you.

Radhika P · Answer

Hi, It's understanable and very clear

Encapsulation, Data Hiding, Data Abstraction

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