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;
}
