java API Math类

package daysreplace;

public class Test {
    public static void main(String[] args) {

        System.out.println(Math.abs(-11));

        System.out.println(Math.ceil(6.6));

        System.out.println(Math.floor(6.6));

        System.out.println(Math.round(20.4));

        System.out.println(Math.max(2,30));

        System.out.println(Math.min(2,30));
        
        System.out.println(Math.pow(2,3));

        System.out.println(Math.random());




    }
}