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diff --git a/tools/NUnit/samples/csharp/money/Money.cs b/tools/NUnit/samples/csharp/money/Money.cs
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+++ b/tools/NUnit/samples/csharp/money/Money.cs
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+// ****************************************************************
+// This is free software licensed under the NUnit license. You
+// may obtain a copy of the license as well as information regarding
+// copyright ownership at http://nunit.org/?p=license&r=2.4.
+// ****************************************************************
+
+namespace NUnit.Samples.Money 
+{
+
+	using System;
+	using System.Text;
+
+	/// <summary>A simple Money.</summary>
+	class Money: IMoney 
+	{
+
+		private int fAmount;
+		private String fCurrency;
+        
+		/// <summary>Constructs a money from the given amount and
+		/// currency.</summary>
+		public Money(int amount, String currency) 
+		{
+			fAmount= amount;
+			fCurrency= currency;
+		}
+
+		/// <summary>Adds a money to this money. Forwards the request to
+		/// the AddMoney helper.</summary>
+		public IMoney Add(IMoney m) 
+		{
+			return m.AddMoney(this);
+		}
+
+		public IMoney AddMoney(Money m) 
+		{
+			if (m.Currency.Equals(Currency) )
+				return new Money(Amount+m.Amount, Currency);
+			return new MoneyBag(this, m);
+		}
+
+		public IMoney AddMoneyBag(MoneyBag s) 
+		{
+			return s.AddMoney(this);
+		}
+
+		public int Amount 
+		{
+			get { return fAmount; }
+		}
+
+		public String Currency 
+		{
+			get { return fCurrency; }
+		}
+
+		public override bool Equals(Object anObject) 
+		{
+			if (IsZero)
+				if (anObject is IMoney)
+					return ((IMoney)anObject).IsZero;
+			if (anObject is Money) 
+			{
+				Money aMoney= (Money)anObject;
+				return aMoney.Currency.Equals(Currency)
+					&& Amount == aMoney.Amount;
+			}
+			return false;
+		}
+
+		public override int GetHashCode() 
+		{
+			return fCurrency.GetHashCode()+fAmount;
+		}
+
+		public bool IsZero 
+		{
+			get { return Amount == 0; }
+		}
+
+		public IMoney Multiply(int factor) 
+		{
+			return new Money(Amount*factor, Currency);
+		}
+
+		public IMoney Negate() 
+		{
+			return new Money(-Amount, Currency);
+		}
+
+		public IMoney Subtract(IMoney m) 
+		{
+			return Add(m.Negate());
+		}
+
+		public override String ToString() 
+		{
+			StringBuilder buffer = new StringBuilder();
+			buffer.Append("["+Amount+" "+Currency+"]");
+			return buffer.ToString();
+		}
+	}
+}