added entry for coin change program
Added junit testcase. Modified CoinComputer to return results arr
added method for using arraylist. added junit test. did comparison...
arraylist is faster
Change method var declaration to refer to an interface (List)
added codingBatExercises project. added FizzString exercise - tested.
Added FizzString2 exercise - Tested.
added entry for new project
added MakeChocolate exercise - Tested. Might refactor for better
solution.
created customized int array data structure with pop and stack related
methods: insertAt, pop(val), popAt(idx), addValue, randomfill(x,y).
addVal not yet tested
added pop(). all methods tested.
added printArrayHorizontally - tested
debugged randomFill() to do correct range - tested.