MinMove

Class name: MinMove
Method name: determineMinSwaps
parameters: String, String
Returns: int

Given a String, and a scrambled version of the String with an extra space,
determine the number of character swaps necessary to unscramble the String.
Characters may only be swapped with the blank space.  When unscrambling the
String, the space must end up as the last character of the String.

For example, given "abc","c ba", the scrambled String undergoes the following
swaps:
swap(1,2) -> "cb a"
swap(0,2) -> " bca"
swap(0,3) -> "abc "
The String is now unscrambled, and since it took 3 swaps, return value is 3.

Here is the method signature (be sure your method is public):
int determineMinSwaps(String unscrambled,String scrambled);

The second String must be exactly one character longer than the first, and
contain exactly one space. Each String will contain only lowercase letters,
except for the second one, which will contain the space. The space in the
second String may be anywhere. The first String will be less than or equal 10
characters in length and at least one character in length.  Other than the
space, the first and second String will contain the same numbers of the same
characters.

Examples:
"farmerfred", "armerfred f" retrns 10.
"greeneggs","rgnegs gee" returns 7.
"what","what " returns 0.
"topcoder"," oecrdpot" returns 7.