Action Delegate In C#

using System;

public class Program
{
    static void Main(string[] args)
    {   
        Action<string> printActDel = ActionDelegateDemo;
        printActDel("World");

        Console.ReadLine();
    }

    public static void ActionDelegateDemo(string name)
    {
        Console.WriteLine(String.Format("Hello {0}", name));
    }

}

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