Initial commit.
Added Matrix class and constructor to initialise all vals to 1.
Added method to do a test print.
Also made slight modifications and corrections to correctly initialise the
array.
Added setElement method and successfully tested it.
Added helper methods to test parameter validity
This checks whether row/column values can be set based on user inputs. It
also checks that the correct number of elements are given in the string
that will be used to modify rows/columns in the array.
Added methods to modify rows and columns.
I tested these with valid and invalid input and it works.
Added module to turn array into String.
The result is a string where rows are delimited by semicolons and columns
are delimited by commas.
Completed the printing methods.
Also added method calls that will utilise all the functionality of the
class. These will eventually have to be put in a new programme which alls
the Matrix classs.