internal static void Run() { var ar = CollectionUtils.CreateArray(5); //--------------------------------------------------- ConsoleUtils.PrintHeader("foreach over array"); foreach (var item in ar) { // cannot assign value to a foreach iteration variable // item = 0; Console.Write($"{item}, "); } //--------------------------------------------------- ConsoleUtils.PrintHeader("foreach over list"); var list = CollectionUtils.CreateList(5); foreach (var item in list) { // cannot assign value to a foreach iteration variable // item = 0; Console.Write($"{item}, "); } //--------------------------------------------------- // continue statement ConsoleUtils.PrintHeader("continue statement"); var sumOfOddNumbers = 0; foreach (var item in ar) { if (item % 2 == 0) { continue; } sumOfOddNumbers += item; } Console.WriteLine($"Sun of odd numbers: {sumOfOddNumbers}"); //--------------------------------------------------- // NullReferenceException list = null; try { foreach (var item in list) { Console.Write($"{item}, "); } } catch (NullReferenceException) { Console.WriteLine("Very, very bad!"); } //--------------------------------------------------- ConsoleUtils.PrintHeader("foreach over IEnumerable<int>"); var enumerable = new ObjectWithIterableProps(); foreach (var intValue in enumerable) { Console.Write($"{intValue}, "); } }
public MultipleIntPropsEnumerator(ObjectWithIterableProps obj) { _obj = obj; }