Not sure why your ChangeDispenser class has a main method (a blank one in fact). It doesn't really need it. Your ChangeDispenserDriver has one and that appears to be the one you're using.
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Type: Posts; User: GoodbyeWorld
Not sure why your ChangeDispenser class has a main method (a blank one in fact). It doesn't really need it. Your ChangeDispenserDriver has one and that appears to be the one you're using.
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if (penniesLeft <= 0) {
pennyRollsAdded = pennyRollsAdded++;
}
that can be reduced to
if (penniesLeft <=0)
{
pennyRollsAdded++;