using System;

using System.Threading.Tasks;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        MainAsync().GetAwaiter().GetResult();

    }

    public static async Task MainAsync()

    {

        var tasks = new List<Task>() {

            PrintTextAsync(),

            ThrowExceptionAsync()

        };

        try

        {

            await Task.WhenAll(tasks);

            Console.WriteLine("No exception thrown.");

        }

        catch

        {

            Console.WriteLine("Exception thrown.");

        }

    }

    private static async Task PrintTextAsync()

    {

        await Task.Delay(0);

        Console.WriteLine("Hello World");

    }

    private static async Task ThrowExceptionAsync()

    {

        await Task.Delay(0);

        throw new Exception();

    }

}