When an instance of a class is returned, do all properties get returned?

CSharp · Console

/Program.cs

using System;

// http://stackoverflow.com/questions/26109120/when-an-instance-of-a-class-is-returned-do-all-properties-get-returned
public static class Go
{
	public static void Main()
	{
		var customer = new Customer();
		Console.WriteLine("First get.  Result: {0}", customer.CustAcct);
		Console.WriteLine("Second get.  Result: {0}", customer.CustAcct);
	}
}

public class Customer
{
	private double ? _custAcct = null;
	public double CustAcct
	{
		get
		{
			if (!_custAcct.HasValue)
			{
				_custAcct = GetCustAcct();
			}

			return _custAcct.Value;
		}
	}

	private double GetCustAcct()
	{
		// do something that takes a long time
		Console.WriteLine("Something is taking a long time");
		return 1234.45;
	}
}