java.lang.Math.abs(double a) java.lang.Long.valueOf(String s, int radix) java.lang.Math.abs(float a) java.lang.Math.abs(double a) package com.codingdict; import java.lang.Math; public class MathDemo { public static void main(String[] args) { // get some doubles to find their absolute values double x = 4876.1874d; double y = -0.0d; // get and print their absolute values System.out.println("Math.abs(" + x + ")=" + Math.abs(x)); System.out.println("Math.abs(" + y + ")=" + Math.abs(y)); System.out.println("Math.abs(-9999.555d)=" + Math.abs(-9999.555d)); } } java.lang.Long.valueOf(String s, int radix) java.lang.Math.abs(float a)