A quick format<span> changes the file system while the </span>full format<span> also checks the </span>drive for bad sectors. <span>The scan for bad sectors is the reason why the Full </span>format<span> takes twice as long as the </span>Quick format<span>. If you choose the </span>Quick format<span> option, the </span>format<span> removes address files from the partition, but does not scan the disk for bad sectors.</span>
Int whatever = scnr.nextInt();
Although usually when a class has a next* member function, it usually needs to check that there IS a next, that you haven't reached the end. Without knowing the class that scnr was instantiated from, I can't guess.