static void Main(string[] args)
{
var container = new TaskContainer();
ITaskExample example = null;
while ((example = container.GetTaskExample()) != null)
{
example.Execute();
Console.WriteLine("Example is processed");
}
}
public ITaskExample GetTaskExample()
{
Console.WriteLine("\n");
int nmb = -1;
ITaskExample result = null;
while (nmb == -1)
{
Console.WriteLine("Type number of the example or \"exit\"");
int i = 0;
foreach (var taskExample in _examples)
{
++i;
Console.WriteLine($"{i}.\t{taskExample.Description}");
}
string input = Console.ReadLine().ToUpper();
if (input == "EXIT")
{
nmb = int.MaxValue;
break;
}
try
{
nmb = Convert.ToInt32(input) - 1;
if (nmb < 0 || nmb >= _examples.Count)
{
Console.WriteLine("Number is out of range");
nmb = -1;
}
else
{
result = _examples[nmb];
break;
}
}
catch (Exception)
{
Console.WriteLine("Number can't be parsed");
nmb = -1;
}
}
return(result);
}