Cookies

Sep 2006 IPSE Homework assignment 2

A broker in cookies makes his week planning. Every day, except Sunday, fresh boxes of cookies are delivered to his warehouse. There are three cookie suppliers, each of which have different pricing policies. The broker decides in advance which supplier to use for a week. The pricing policies of the suppliers are as follows.

CookieMonster: 10 euro per delivery plus 5.50 euro per box;
Verkade: 6 euro per box for orders less than 10 boxes, 5 euro per box for orders from 10 and less than 25, 4 euro per box for orders from 25 boxes and above.
WaffleBaffle: 20 euro per order plus 4 euro per box plus some coffee compensation. WaffleBaffle puts true coffee in its "Java Wafels" (they do exist!) and hence needs to calculate the world market price of coffee into the price of the cookies. The coffee compensation is (w-3) * 0.10 per box of cookies, where w is the market price of coffee.

Problem

Write a Java program that does the following. It reads 6 integral numbers representing the numbers of boxes needed for each day of the week. Then it reads the code of a supplier and it prints the total cost for that week when that supplier will be used. If the supplier is WaffleBaffle, the name on input is followed by a double representing the world market price of coffee.

Input

Input is on standard in (System.in). It consists of 6 integral numbers followed by the word "CM" or "V" or by the word "WB" and a double. The numbers and words are separated by whitespace (one or more spaces, newlines, tabs).

Output

Output should be written to standard out (System.out). The format is:

cost using [supplier code]: ... euro

On the dots the right value should appear.

Implementation and design

The number of boxes needed for each day should be stored into an array.
The three price calculations should be performed by three methods, each taking an int (the number of boxes) as an argument and returning a double (the price of that order). The method for WaffleBaffle will take a second argument for the coffee price. So the header for the price calculation of Verkade and CookieMonster will look like this:
```
double someWellChosenName(int n)
```
Of course, your program may (and will) contain more methods than these three.
Make sure your program is well written, using clear names, proper indentation, etc.

Examples

input:

20 10 8 7 6 30 V

output:

week cost using V: 396.0 euro

input:

20 10 8 7 6 30
WB 3.5

output:

week cost using WB: 448.05 euro