using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
class Program
{
	static void Main()
	{
		// Return a value type with a lambda expression
		Task task1 = Task.Factory.StartNew ( () => 1 );
		int i = task1.Result;
		// Return a named reference type with a multi-line statement lambda.
		Task task2 = Task.Factory.StartNew ( () =>
		{
			string s = ".NET";
			double d = 4.0;
			return new Test { Name = s, Number = d };
		} );
		Test test = task2.Result;
		// Return an array produced by a PLINQ query
		Task task3 = Task.Factory.StartNew ( () =>
		{
			string path = @"C:\users\public\pictures\";
			string[] files = Directory.GetFiles(path);
			var result = (from file in files.AsParallel()
			let info = new FileInfo(file)
			where info.Extension == ".jpg"
			select file).ToArray();
			return result;
		});
			foreach (var name in task3.Result)
			Console.WriteLine(name);
		}
			class Test
			{
			public string Name { get; set; }
			public double Number { get; set; }
		}
		}