CS-110 Coursework 2: Set 18th
November, due 5
th December
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Neal Harman
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Task
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Your task is to write a (very simple:-) student record system. You should be able to store
details about students - their name, subject and a student number; as well as the level
they have most recently
completed
ranging from 0 (meaning they are still in the first year)
through to 3 (meaning they have graduated). It should also store their
result
for each level
they have completed as a number 0-100. Your program should allow the user to enter
student data for as many students as they want. When they finish entering data, it should
print out in a ‘nice’ way the data of all the students entered so far, including their
average
mark over all the levels they have completed.
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Strategy and Advice
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1.
The point of this coursework is for you to start working with
classes
and
objects.
So you
must
use a class to represent the student data.
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2.
Your first task is to define a
Student
class - the way to do this is to think of all the data that the
class must contain (hint: it’s all listed in the first paragraph:-) and then to work out what methods
you need to
set
and
access
that data; as well as
calculate
any additional information you need.
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3.
Remember it may not be appropriate to be able to set and get all data - some you may only want
set initially when you create a student object and not change later.
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4.
Remember also that some data you might not want to store but to calculate when you need it.
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5.
Think carefully about the
Student
class. The methods you define for it are going to be the
only
way you can access and manipulate the students’ data (if you define them properly). So make
sure you consider them thoroughly
.
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6.
Once you have worked out what methods you need for the student class, you need to actually
write them. There are going to be quite a few (it will depend exactly on how you approach the
problem) but they should all be very short.
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7.
Finally, you need to define
another
class – the one that will contain the
main
method - that reads
student data from the user, creates new
Student
objects, and stores them somehow. You
could
store them in an array
–
but remember that the task says that the user can enter as many
students as they want. So you might want to consider using an
ArrayList
instead.
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8.
The biggest area for confusion is level. Remember the number you store represents the
level they have
completed
. So 0 means they are in Level 1 (not Level 0 - there is no Level
0 here:-); Level 1 means they are in Level 2 and have completed Level 1, and so on.
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9.
One of the slightly tricker things to handle is how to access the data for the students’ results for
each level. The ‘obvious’ way is to have a method returning the data for each level - but there is
a better way to do it by thinking about parameters:
-)
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10.
Another slightly tricky thing – also to do with results –
is that, depending on what level a student
is in, they may not actually
have
results for every level. So you need some way to check
before
you try to access data that does not exist.
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11.
(In fact, it would be good practice in all cases to try to ensure that if any parts of the data for a
student are missing, your program does not fail.)
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12.
While I don’t want to encourage anyone to leave coursework to the last minute, I will –
as
before – be going over material relevant to this coursework over the next two weeks.
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13.
Come and ask me questions and discuss it in tutorials if you have them.
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14.
If you want to extend the problem and do more you can
but in this case there are no specific
marks for that.
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How Will This Be Marked
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As with the last coursework, this one will be assessed against the assessment rubric on
Blackboard
. It will be more detailed than that for coursework 1, and the threshold needed to reach
each level will be somewhat higher - however, this is mostly to do with trying to get you to learn the
lessons from coursework 1!
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Submission
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You must submit this work by 11.00 on December 5th 2013 via Blackboard. The standard College
penalty of zero tolerance for late submissions will be applied. If you submit late and believe you
have extenuating circumstances then you need to contact me as soon as you can. However, no
marks will be awarded to work submitted after the solutions have been released in any
circumstances. Marked work with feedback will be returned electronically on or by 13
th December
2012.
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