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Data Structures and Algorithms
with Object-Oriented Design Patterns in C# |
The constructor which takes no arguments is called the no-arg constructor . For example, the no-arg constructor is invoked when a variable is declared like this:
Complex c = new Complex();If there are no constructors defined in a C# class, the C# compiler provides a default no-arg constructor . The default no-arg constructor does nothing. The fields simply the retain their initial, default values.
Program: Complex constructors.
Program 
gives an implementation for the no-arg constructor.
of the Complex class (lines 12-13).
This constructor uses the an initializer called this.
In C# one constructor can invoke another constructor by calling
using the this initializer.
In this case, the no-arg constructor invokes the two-arg constructor
to set both real and imag fields to zero.
Copyright © 2001 by Bruno R. Preiss, P.Eng. All rights reserved.