static void Main(string[] args)
{
Console.WriteLine("first access to an instance BigObject");
Console.WriteLine(BigObject.GetInstance() + " " + BigObject.GetInstance().GetHashCode());
Console.WriteLine("second access to an instance BigObject");
Console.WriteLine(BigObject.GetInstance() + " " + BigObject.GetInstance().GetHashCode());
}
public static BigObject GetInstance()
{
if (instance == null)
{
lock (typeof(BigObject)) {
if (instance == null)
{
instance = new BigObject();
}
}
}
return(instance);
}