Problem

Candle Line is a business that sells designer candles and personal gifts. They cater to customers who want to send gifts for birthdays, holidays, and other special occasions. Candle Line's e-commerce site is an interactive Web site that uses a shopping cart to allow customers to purchase items. As customers choose the candles and gifts they wish to purchase, the items are added to an electronic shopping cart. Approximately 300 people per day are accessing Candle Line's Web site, but many customers have complained that the shipping charges become a hidden cost when they are placing an order. In order to improve customer relations, the company would like to give its customers a choice in shipping methods and would like to create a way for customers to calculate their shipping costs before finalizing their order.

Create a Java applet similar to the one shown in Figure 4-69 that calculates the shipping cost for customer purchases. Eventually, the program will read the total price of purchases as data from the Web page; for now, the user will be able to enter the total price as an input value and then have the program calculate shipping charges. If a customer wants priority delivery (overnight), then the shipping charge is $16.95. If the customer prefers express delivery (2 business days), then the shipping charge is $13.95. If the customer wants standard delivery (3 to 7 business days) and the total cost of the order is more than $100.00, then candleLine ships the items to the customer free; if the order is less than $100.00, then CandleLine charges $7.95 for standard delivery.