java.lang.Number.byteValue() java.lang.Math.ulp(float f) java.lang.Number.doubleValue() java.lang.Number.byteValue() package com.codingdict; public class NumberDemo { public static void main(String[] args) { // get a number as integer Integer x = new Integer(123456); // get a number as float Float y = new Float(9876f); // print their value as byte System.out.println("x as integer:" + x + ", x as byte:" + x.byteValue()); System.out.println("y as float:" + y + ", y as byte:" + y.byteValue()); } } java.lang.Math.ulp(float f) java.lang.Number.doubleValue()