public class BasicMathDemo {
    public static void main(String[] args) {
        double aNumber = -191.635;

        System.out.println("The absolute value of " + aNumber + " is " + Math.abs(aNumber));
        System.out.println("The ceiling of " + aNumber + " is " + Math.ceil(aNumber));
        System.out.println("The floor of " + aNumber + " is " + Math.floor(aNumber));
        System.out.println("The rint of " + aNumber + " is " + Math.rint(aNumber));
    }
}