import??java.io.*;
import??java.util.*;


/*?DOCUMENT?THIS?CLASS?*/
public?class?ShoppingCartApplication??{

	private?static?BufferedReader??stdIn?=
		new??BufferedReader（new??InputStreamReader（System.in））;
	private?static?PrintWriter??stdOut?=
		new??PrintWriter（System.out?true）;
	private?static?PrintWriter??stdErr?=
		new??PrintWriter（System.err?true）;

	private?ShoppingCart?cart;

	/*?DOCUMENT?THIS?PUBLIC?METHOD?*/
	public?static?void?main（String[]??args）?throws?IOException??{

		ShoppingCartApplication?application?=?new??ShoppingCartApplication（）;

		application.run（）;
	}

	private?void?run（）?throws?IOException??{

		cart?=?new??ShoppingCart（）;

		int??choice?=?getChoice（）;

		while?（choice?!=?0）??{

			if?（choice?==?1）??{
				cart.addProduct（readProduct（））;
			}?else?if?（choice?==?2）??{
				stdOut.println（cart.toString（））;
			}?else?if?（choice?==?3）??{
				stdOut.println（cart.getTotalValue（））;
			}

			choice?=?getChoice（）;
		}
	}

	private?int??getChoice（）?throws?IOException??{

		do??{

			int?input;

			try??{
				stdErr.println（）;
				stdErr.print（“[0]??Quit\n“
				?????????????+?“[1]??Add?Product\n“
				?????????????+?“[2]??Display?Products\n“
				?????????????+?“[3]??Display?Total\n“
				?????????????+?“choice>“）;
				stdErr.flush（）;

				input?=?Integer.parseInt（stdIn.readLine（））;

				if?（0?<=?input?&&?3?>=?input）??{

					return??input;

				}?else?{
					stdErr.println（“Invalid?choice:??“?+?input）;
				}
			}?catch?（NumberFormatException??nfe）??{
				stdErr.println（nfe）;
			}
		}??while?（true）;
	}

	private?Product?readProduct（）?throws?IOException?{

		final?String?DELIM?=?“_“;

		String?name?=?““;
		int?quantity?=?0;
		double?price?=?0.0;


		/*?PLACE?YOUR?CODE?HERE?*/
		do{
			try{
				stdErr.println（“product?[product?name_qty_price]“）;
				StringTokenizer?tokenizer=new?StringTokenizer（stdIn.readLine（）DELIM）;
				if（tokenizer.countTokens（）==3）{
					name=tokenizer.nextToken（）;
					quantity=Integer.parseInt（tokenizer.nextToken（））;
					price=Double.parseDouble（tokenizer.nextToken（））;
				?if（quantity<=0||price<0）?stdErr.println（“Invalid?input“）;
				?else?break;
			}else??stdErr.println（“Invalid?input“）;
				
		}catch（NumberFormatException?m）{
				stdErr.println（m）;
			}
		}while（true）;

		return?new?Product（name?quantity?price）;
		
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3435??2010-11-14?17:04??excercise\excercise?1\exe-shopping-cart.jar

?????文件????????934??2006-01-10?16:51??excercise\excercise?1\student-files\Product.class

?????文件???????9517??2006-01-10?16:51??excercise\excercise?1\student-files\Product.html

?????文件?????????57??2006-01-10?16:51??excercise\excercise?1\student-files\resources\inherit.gif

?????文件???????1135??2006-01-10?16:51??excercise\excercise?1\student-files\ShoppingCart.class

?????文件???????8509??2006-01-10?16:51??excercise\excercise?1\student-files\ShoppingCart.html

?????文件???????2405??2010-11-16?22:30??excercise\excercise?1\student-files\ShoppingCartApplication.java

?????文件???????1855??2005-12-13?15:10??excercise\excercise?1\student-files\ShoppingCartApplication原.java

?????文件??????71513??2010-11-18?00:15??excercise\excercise?2\uml-gou-cof.jpg

?????文件?????107102??2010-11-18?17:22??excercise\excercise?2\uml-gou-cof1.jpg

?????文件???????1283??2010-11-25?11:35??excercise\excercise?3\student-files\Coffee\Coffee.java

?????文件????????737??2010-11-25?11:06??excercise\excercise?3\student-files\Coffee\Product.java

?????文件???????2484??2005-12-08?15:30??excercise\excercise?3\student-files\Coffee\TestCoffee.java

?????文件????????861??2010-11-25?23:15??excercise\excercise?3\student-files\CoffeeBrewer\CoffeeBrewer.java

?????文件????????773??2010-11-25?23:16??excercise\excercise?3\student-files\CoffeeBrewer\Product.java

?????文件???????2105??2005-12-08?15:30??excercise\excercise?3\student-files\CoffeeBrewer\TestCoffeeBrewer.java

?????文件????????626??2010-11-25?23:15??excercise\excercise?3\student-files\OrderItem\OrderItem.java

?????文件????????737??2010-11-25?11:06??excercise\excercise?3\student-files\OrderItem\Product.java

?????文件???????2177??2005-12-08?15:30??excercise\excercise?3\student-files\OrderItem\TestOrderItem.java

?????文件????????737??2010-11-25?11:06??excercise\excercise?3\student-files\Product\Product.java

?????文件???????2487??2005-12-08?15:30??excercise\excercise?3\student-files\Product\TestProduct.java

?????文件???????1295??2006-01-10?17:14??excercise\excercise?4\student-files\Coffee.class

?????文件??????15188??2006-01-10?17:14??excercise\excercise?4\student-files\Coffee.html

?????文件????????971??2006-01-10?17:14??excercise\excercise?4\student-files\CoffeeBrewer.class

?????文件??????11474??2006-01-10?17:14??excercise\excercise?4\student-files\CoffeeBrewer.html

?????文件??????12545??2005-12-02?15:25??excercise\excercise?4\student-files\GourmetCoffee.java

?????文件????????968??2006-01-10?17:15??excercise\excercise?4\student-files\OrderItem.class

?????文件???????9760??2006-01-10?17:14??excercise\excercise?4\student-files\OrderItem.html

?????文件????????979??2006-01-10?17:14??excercise\excercise?4\student-files\Product.class

?????文件??????11042??2006-01-10?17:14??excercise\excercise?4\student-files\Product.html

............此處省略72個文件信息