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You're welcome - I'm glad you've got it doing what you want.

Yes, x-=1 is rather like --x. --x, x--,++x, x++ exist in Java too.

The code would look like that in #7.

Yes 0.04 strikes me as better than 0.05

First on the -= operator because I think it does simplify things a lot. x-=y is just a shorthand way of saying x=x-y or, in words "subtract y off x". But it's your code! Stay with what you're...

There is a ceil() method in the Math class. But, beware: it takes a double argument and returns a double value.

I think the approach I mentioned before (look for stray pennies and add 1 nickel if...

Well, giving change is mostly about arithmetic. I don't think there is some API shortcut. The problem you were given is basically meant to make you think about the fussy arithmetic details.
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You subtract using - :)

The thing is to subtract each time you have figured out one of the values:



ten=(totalCents/1000);
totalCents -= ten * 1000; // this line subtracts the ten*1000...

This indicates a couple of things. First (obviously) you can't have 32.19... ten dollar bills. In fact the number of bills will be a whole number (0, 1, 2, ...) without a fraction. In your code it...

It would help very much if *you* said what was wrong.

Specifically, does that code compile? If not, and you can't understand the compiler's messages, post those messages and indicate which lines...