Method exercises with input parameters, return values and test cases:

Create one new project to hold all of these. Create all of the methods in one WorkIt class.

1. profitOnOneSale

Input parameters:
	Double	Price
	Double	Cost
Description of processing: The profit is the price minus the cost.
Return:
	Double	Profit

2. profitOnManySales

Input parameters:
	Double	Price
	Double	Cost
	Int	Quantity sold
Description of processing: The profit is the price minus the cost. Multiply that times the quantity sold for the total profit.
Return:
	Double	Profit

4. productMinusTenPercent

Input parameters:
	int	First number - int
	int	Second number - an int
Description of processing: Multiply the two numbers and then reduce that number by 10%
Return:
	double	Result of first * second minus 10% of total.

5. loopAddUp

Input parameters:
	int	Number to count
Description of processing: Starting at 1, keep adding the numbers until you reach the number to count.
Return:
	double	Sum of all the numbers up to the "Number to Count"

6. loopExponent

Input parameters:
	double	Any number
	int	Power to raise
Description of processing: Multiply the number as many times as the power to raise it to. Assume power is positive
Return:
	double	Number raised to that power

7. oneName

Input parameters:
	String	First
	String	Last
Description of processing: The full name is the first name plus a space plus the last name
Return:
	String	Full name

8. charsToWord

Input parameters:
	char	Any character
	char	Any character
Description of processing: Put the 2 characters together into one string starting with "And the word is ". Do not put any spaces between them. (For example, send 't' and 'o' and get back "And the word is to"
Return:
	String	String of the 2 given characters after "And the word is "

9. Tie all these together with one main method that calls all the methods you created. It should do the following:
1) Ask the user for their first name (and then read it in)
2) Ask the user for their last name (and then read it in)
3) Use the oneName method to get their full name.
4) Tell the user, "Hello" and then their name.
5) Ask the user for the cost and price (and then read them in)
6) Use the profitOnOneSale method to determine the profit.
7) Tell the user that your profit is: and then the profit.
8) Ask the user how many they sold (and then read it in)
9) Tell the user their total profit on ___ items is ____.
10) Ask the user to enter a number (and then read it in)
11) Use the loopAddUp method to determine the sum of all numbers from one to the number the user entered.
12) Use the loopExponent method to determine that number raised to the power of 3.
13) Tell the user : The sum of all numbers from 1 to ___(what they entered) is ____
14) Tell the user: When you raise ___ to the power of 3, you get ____.
15) Tell the user goodbye.

10. Tie these all together one more way in the method sales. This new method sales should take in no parameters and give out no parameters. It should do the following:
1) Ask the user how much they are willing to pay for a really good book.
2) Calculate the profit you will make on the book if it costs $3.50.  Call profitOnOneSale to get that price.
3) Tell the user the total profit you will make on a book.
4) Ask the user how many books they are willing to buy.
5) Tell the user how much profit you will make on all the books (and use profitOnManySales to help you).
6) Tell the user how much profit you will make if they buy just 3 more books.
7) (for extra credit) Create a loop to tell the user how much profit you will make on 1 book, then 2, then 3, all the way up  to 10 books. Use a call to method profitOnManySales each time. It will look something like:

for 1 books, I will have a profit of 30
for 2 books, I will have a profit of 60
for 3 books, I will have a profit of 90
....
for 10 books, I will have a profit of xxxx