Day 10 Math

public class Day10B {
    public static void main(String[] args) {
        Day10B callMe = new Day10B();

        System.out.println(Math.E);

        System.out.println("square root of 25: " + Math.sqrt(25));

        System.out.println("cube root of 27: " + Math.cbrt(27));

        callMe.testRoundingNumber(0.25);
        callMe.testRoundingNumber(0.5);
        callMe.testRoundingNumber(0.75);
        callMe.testRoundingNumber(10);
        callMe.testRoundingNumber(10.20);
        callMe.testRoundingNumber(10.57);
    }

    void testRoundingNumber(double n1){
        System.out.println("using rint: " + Math.rint(n1));
        System.out.println("using round: " + Math.round(n1));
        System.out.println("using floor: " + Math.floor(n1));
        System.out.println("using ceil: " + Math.ceil(n1));
        System.out.println("- - -\n");
    }
}