java.lang.Math.floor(double a) java.lang.Math.expm1(double x) java.lang.Math.getExponent(double d) java.lang.Math.floor(double a) package com.codingdict; import java.lang.*; public class MathDemo { public static void main(String[] args) { // get two double numbers double x = 60984.1; double y = -497.99; // call floor and print the result System.out.println("Math.floor(" + x + ")=" + Math.floor(x)); System.out.println("Math.floor(" + y + ")=" + Math.floor(y)); System.out.println("Math.floor(0)=" + Math.floor(0)); } } java.lang.Math.expm1(double x) java.lang.Math.getExponent(double d)