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Java OOP GUIDE / WORK
DURATION CLASS 2 Topics
TASK –
PART 1 – SETUP Copy and
paste the Duration class from the Duration class solutions.
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TASK – PART 2 – PRIVATE
METHOD (SIMPLIFY) As it stands,
the Duration class can have a value for seconds or minutes that exceeds
60. For example, the code Duration d = new Duration(1,
200, 302); would give a
String representation of 1h200m302s. We want to
remove this. We want the 302 seconds
to become 5 minutes and 2 seconds.
Then we want the 205 minutes to become 2 hours and 25 minutes. So in total, we should get a String
representation of 3h25m2s. You are asked
to create a method called simplify. It
will check the instance variables and make sure that both seconds and minutes
are under 60. If they aren’t, it will
reduce them and increase the proper instance variable. Also, we want
this method to be called immediately when the object is created. So we will call it from each constructor. Furthermore,
we do not want this method to be used from outside the class. It only needs to get used once. So let’s make it private.
TASK – PART 3 – TESTING
YOUR SIMPLIFY METHOD Test that
your method works.
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