.NET (Core and Framework)

<br />
secondHashtable = (Hashtable) firstHashtable.Clone();<br />

<br />
BinaryFormatter formatter = new BinaryFormatter();<br />
MemoryStream memoryStream = new MemoryStream();<br />
formatter.Serialize(memoryStream, firstHashtable);<br />
secondHashTable = (Hashtable) formatter.Deserialize(memoryStream);<br />

<br />
using System;<br />
using System.IO;<br />
<br />
namespace Dump<br />
{<br />
	class Class1<br />
	{<br />
		[STAThread]<br />
		static void Main(string[] args)<br />
		{<br />
			char[] buffer = new char[512];<br />
			int len;<br />
			while((len = Console.In.Read(buffer, 0, 512)) != 0)<br />
				Console.Write(buffer, 0, len);<br />
		}<br />
	}<br />
}<br />
<br />