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How is encapsulation implemented in C#?
Encapsulation is implemented by using access specifiers. An access specifier defines the scope and visibility of a class member. C# supports the following access specifiers: Public, Private, Protected, Internal, Protected internal, etc.
Encapsulation can be understood by taking an example of private access specifier that allows a class to hide its member variables and member functions from other functions and objects.
In the following example we have length and width as variables assigned private access specifier −
Example
using System; namespace RectangleApplication { class Rectangle { private double length; private double width; public void Acceptdetails() { length = 20; width = 30; } public double GetArea() { return length * width; } public void Display() { Console.WriteLine("Length: {0}", length); Console.WriteLine("Width: {0}", width); Console.WriteLine("Area: {0}", GetArea()); } } class ExecuteRectangle { static void Main(string[] args) { Rectangle r = new Rectangle(); r.Acceptdetails(); r.Display(); Console.ReadLine(); } } }
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