//Main -- Demonstrate five different applications of // iterator blocks. static void Main(string[] args) { // Instantiate a MonthDays "collection" class. MonthDays md = new MonthDays(); // Iterate it. Console.WriteLine("Stream of months:\n"); foreach (string month in md) { Console.WriteLine(month); } // Instantiate a StringChunks "collection" class. StringChunks sc = new StringChunks(); // Iterate it: prints pieces of text. // This iteration puts each chunk on its own line. Console.WriteLine("\nstream of string chunks:\n"); foreach (string chunk in sc) { Console.WriteLine(chunk); } // And this iteration puts it all on one line. Console.WriteLine("\nstream of string chunks on one line:\n"); foreach (string chunk in sc) { Console.Write(chunk); } Console.WriteLine(); // Instantiate a YieldBreakEx "collection" class. YieldBreakEx yb = new YieldBreakEx(); // Iterate it, but stop after 13. Console.WriteLine("\nstream of primes:\n"); foreach (int prime in yb) { Console.WriteLine(prime); } // Instantiate an EvenNumbers "collection" class. EvenNumbers en = new EvenNumbers(); // Iterate it: prints even numbers from 10 down to 4. Console.WriteLine("\nstream of descending evens :\n"); foreach (int even in en.DescendingEvens(11, 3)) { Console.WriteLine(even); } // Instantiate a PropertyIterator "collection" class. PropertyIterator prop = new PropertyIterator(); // Iterate it: produces one double at a time. Console.WriteLine("\nstream of double values:\n"); foreach (double db in prop.DoubleProp) { Console.WriteLine(db); } // Wait for the user to acknowledge. Console.WriteLine("Press enter to terminate..."); Console.Read(); }