From Java to C#: A Developer's Guide

7.6. Constructor initializers and constructor chaining

Called 'constructor initializers' in C#, the two keywords this (similar to Java's this) and base (similar to Java's super) allow the programmer to invoke an overloaded constructor in the same class and a constructor in the superclass, respectively.

Like Java

• You can use this() to call an overloaded constructor in the same class by passing into this() the correct parameters. Instead of a separate this() statement, in C#, the this keyword is used like an extension of the constructor declaration as shown in the example below.

   1: using System;
   2:
   3: public class Test{
   4:   public static void Main(){
   5:     Test t = new Test(0);
   6:   }
   7:
   8:   public Test(int i):this("a string"){ 9: Console.WriteLine("constructor ...