What are constructors in C# programs?

A class constructor is a special member function of a class that is executed whenever we create new objects of that class.

A constructor has exactly the same name as that of class and it does not have any return type.

Constructor has the same name as the class name −

class Demo {

   public Demo() {}
}

The following is an example −

Example

 Live Demo

using System;

namespace LineApplication {
   class Line {
      private double length; // Length of a line

      public Line() {
         Console.WriteLine("Object is being created");
      }

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

      public double getLength() {
         return length;
      }

      static void Main(string[] args) {
         Line line = new Line();

         // set line length
         line.setLength(6.0);
         Console.WriteLine("Length of line : {0}", line.getLength());
         Console.ReadKey();
      }
   }
}

Output

Object is being created
Length of line : 6

Samual Sam

Published on 08-Aug-2018 06:10:55

• Related Questions & Answers
• What are destructors in C# programs?
• What are System Programs?
• What are constructors in Java?
• What are Default Constructors in Java?
• What are copy constructors in Java?
• What are parametrized constructors in Java?
• When are Constructors Called in C++?
• What are the differences between constructors and destructors in C#?
• Constructors in C#
• Constructors in C++
• What is default constructor in C# programs?
• Are Multiple Constructors possible in Java?
• What is a parameterized constructor in C# programs?
• Default Constructors in C++
• Constructors in C++ Programming