Close a Scanner linked to System.in

Question

I have a Scanner linked to System.in. Now, after using the Scanner, I should close it, as it is bad coding practice to leave it open.

Answer 1

I have vague memories of strange, undiagnosable problems long ago with using the same Scanner of System.in twice, so this is what I use (even though you should probably just use one scanner for the duration of the program):

static String input() {
    try {
        return new Scanner(System.in).nextLine();
    } catch (NoSuchElementException e) {
        throw e;
    }
}

For some reason this works without warnings, whereas if I don't do the catch-throw, Eclipse will complain Resource leak: '' is never closed.