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CSharp · Console

/Program.cs

using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
					
public class Program
{
	public static void Main()
	{
		var dictionary = new ConcurrentDictionary<string, int>();
		var key = new string(new char[] { 'A', 'B' });
		var @value = 8;
		dictionary.TryAdd(key, @value);
		Console.WriteLine(dictionary[key]);
		var qu = new Queue<char>();
		qu.Enqueue('A');
		qu.Enqueue('B');
		key = new string(qu.ToArray());
		Console.WriteLine(dictionary[key]);
	}
}