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What is the default constructor in C#?
A class constructor is a special member function of a class that is executed whenever we create new objects of that class. A default constructor does not have any parameter.
The following is an example showing how to work with default constructor in C# −
Example
using System; namespace LineApplication { class Line { private double length; // Length of a line public Line(double len) { //Parameterized constructor Console.WriteLine("Object is being created, length = {0}", len); length = len; } public void setLength( double len ) { length = len; } public double getLength() { return length; } static void Main(string[] args) { Line line = new Line(10.0); Console.WriteLine("Length of line : {0}", line.getLength()); // set line length line.setLength(6.0); Console.WriteLine("Length of line : {0}", line.getLength()); Console.ReadKey(); } } }
Output
Object is being created, length = 10 Length of line : 10 Length of line : 6
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