Private variables in C#-C#.Net Tutorial-php.cn

Private variables in C#

PHPz

Release： 2023-08-26 19:13:07

forward

1510 people have browsed it

C# 中的私有变量

Private access modifier allows a class to hide its member variables and member functions from access by other functions and objects. Only functions of the same class can access its private members. Even instances of a class cannot access its private members.

Create a private variable −

private double length;

Copy after login

Let’s look at an example. Here, if we try to access the length variable which is set as private, the following error will be generated.

BoxApplication.Box.length&#39; is inaccessible due to its protection level

Copy after login

Now let’s see the complete example -

Example

using System;

namespace BoxApplication {
   class Box {
      private double length; // Length of a box
      private double breadth; // Breadth of a box
      private double height; // Height of a box

      public void setLength( double len ) {
         length = len;
      }

      public void setBreadth( double bre ) {
         breadth = bre;
      }

      public void setHeight( double hei ) {
         height = hei;
      }

      public double getVolume() {
         return length * breadth * height;
      }
   }

   class Boxtester {
      static void Main(string[] args) {
         Box Box1 = new Box(); // Declare Box1 of type Box
         Box Box2 = new Box();
         double volume;

         // ACcessing private variables outside the class gives an error.
         // Box1.length = 10;

         Box1.setLength(6.0);
         Box1.setBreadth(7.0);
         Box1.setHeight(5.0);

         // box 2 specification
         Box2.setLength(12.0);
         Box2.setBreadth(13.0);
         Box2.setHeight(10.0);

         // volume of box 1
         volume = Box1.getVolume();
         Console.WriteLine("Volume of Box1 : {0}" ,volume);

         // volume of box 2
         volume = Box2.getVolume();
         Console.WriteLine("Volume of Box2 : {0}", volume);

         Console.ReadKey();
      }
   }
}

Copy after login

The above is the detailed content of Private variables in C#. For more information, please follow other related articles on the PHP Chinese website!