Suppose That the Invoice-Printing Application from Section 12

question 62

Multiple Choice

Suppose that the invoice-printing application from section 12.3 needs to be enhanced by including the computation and printing of sales taxes as needed. Since some vendors charge no sales taxes, the original Invoice class needs to be preserved. Select the code segment that best illustrates reuse of the existing Invoice class. public class TaxableInvoice ___________________________

• A) extends Invoice
• {
• …
• }
• B) {
• Private Invoice originalInvoice;
• …
• }
• C) implements Invoice
• {
• …
• }
• D) {
• Private ArrayList<Invoice> invoices;
• …
• }

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Definitions:

Tax Purposes

The reason or intent behind financial decisions or transactions primarily to comply with tax regulations or optimize tax benefits.

Process Layout

An arrangement of resources in a manufacturing or service environment where similar processes are grouped together.

Product

A tangible good, an intangible service, or a combination of these.

Equipment

Tools or machinery that are necessary for a particular kind of work or activity, often utilized in various fields such as construction, manufacturing, and medical.