//Dollar times(int multiplier)
//{
// amount *= multiplier;
// return new Dollar;
//}
public bool equals(Dollar dollar)
{
Dollar dollar1 = (Dollar)dollar;
return(amount == dollar1.amount);
//return true;
}
public void testMultiplication()
{
Dollar five = new Dollar(5);
Assert.AreEqual(10, five.times(2));
//Assert.AreEqual(new Dollar(10), five.times(2));
//Assert.AreEqual(new Dollar(15), five.times(3));
}