Development C# Tutorial

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using System.Security.Cryptography;
public class MainClass
{
    public static void Main()
    {
        object target = new object();
        WeakReference wr = new WeakReference(target);
        Console.WriteLine("IsAlive: {0}", wr.IsAlive);
        GC.Collect();
        Console.WriteLine("IsAlive: {0}", wr.IsAlive);
    }
}
IsAlive: True
IsAlive: False