... statement, 14 1Err object, 16 6Errors, 15 2, 15 3, 16 1Events, 37 –38, 42, 11 8– 11 9Excel (see Microsoft Excel)Exception handlers, 15 3, 16 0 16 7Exceptions, errors vs., 16 1Exchange "back end," ... operator, 53Out-of-sample testing, 19 Overloading, 12 0Overloads keyword, 12 0Overridable keyword, 11 6Overrides keyword, 11 6Overriding definitions, 11 5– 11 7, 11 6Package diagrams, 347–349Paper ... objects vs., 275–277 Net present value function, 98 .NET type system, 17 1 18 2New keyword, 11 3 11 5, 13 3New method, 203, 204, 206, 207NMTOKEN attribute, 312 NMTOKENS attribute, 312 Nonprocedural...