Beware of round(). Read its documentation carefully to find what it actually does.
You might want to display the numbers rounded rather than rounding their values. In which case I suggest you look at the % tags, which you can find in the Java Tutorials if you search with ctrl‑F‑formatting. Also look in the Formatter class, but the link covers about 30 pages!
Get meta with me! What pursues us is our own obsessions! But not this tiny ad: