java.lang.Math.scalb(float f,int scaleFactor) java.lang.Math.scalb(double d,int scaleFactor) java.lang.Math.signum(double d) java.lang.Math.scalb(float f,int scaleFactor) package com.codingdict; import java.lang.*; public class MathDemo { public static void main(String[] args) { // get a x to be raised float x = 50.14f; int y = 4; // calculate x multiplied by 2 raised in y System.out.println("Math.scalb(" + x + "," + y + ")=" + Math.scalb(x, y)); } } java.lang.Math.scalb(double d,int scaleFactor) java.lang.Math.signum(double d)