1. Marking scheme
       q1   2
       q2   6
       q3   4
       q4   4
       q5   4
       q6   1
       q7   5
       q8   4
       q9   2
       tot 32
   final mark = (x/32)*10

2. The java code in questions 2 and 7 is in this directory and
   can be run from the command line.