help2005

It's UWAweek 19 (1st semester, week 10)

help2005

This forum is provided to promote discussion amongst students enrolled in CITS2005 Object Oriented Programming.

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UWA week 17 (1st semester, week 8) ↓

assessed lab describe() and Empty constructor (all 3)

12:46pm Mon 22nd Apr, ANONYMOUS

Should describe() print a string or returning a string when called? The constructor for empty class requires no arguments, however does it require anything within the {} to form an object in that class? ie) writing "public Empty{}" on it's own won't achieve anything will it?

assessed lab describe() and Empty constructor (all 3)

1:20pm Mon 22nd Apr, Abdul M.

As we can see in the abstract class SetExpression, the signature of the describe() function is public abstract String describe(). It means that it must RETURN a string.

Because the Empty class doesn't have any properties, there is no way you require anything inside the {} block on the constructor.

assessed lab describe() and Empty constructor (all 3)

4:29pm Mon 22nd Apr, Andrew G.

ANONYMOUS wrote:

> Should describe() print a string or returning a string when called? > > The constructor for empty class requires no arguments, however does it require anything within the {} to form an object in that class? > > ie) writing "public Empty{}" on it's own won't achieve anything will it?

I will add: Please do not print anything. No part of the specification asks for you to print anything, and while doing so would not make your code wrong, and so would likely not cost you marks (except perhaps for style, given it is unnecessary mess), it will make marking your code more difficult.

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