Java 6 Illuminated: An Active Learning Approach, 2nd Edition

354 CHAPTER 6 Flow of Control,Part 2: Looping

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After you get a new Item, you can “scan” the item to get its price by

calling the getPrice method of the Item class. The getPrice method

has this API:

double getPrice( )

Thus, you would get the next item, then get its price using code like

the following:

Item newItem;

double price;

newItem = getNext( );

price = newItem.getPrice( );

When you have finished writing the code for the checkout method, compile

and run the application from the Cashier class. When the application fin-

ishes executing, verify that your code is correct by:

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checking that your subtotal matches the correct subtotal displayed

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checking that ...