### How to calculate and print Signum function of a number in Java using Math class ?.

 Tweet Program to calculate and print Signum function of a number in Java using Math class. ```package com.hubberspot.code; public class SignumDemo { public static void main(String[] args) { // Creating three ints variable holding // a negative integer, a positive integer // and 0 integer. int zero = 0; int positive = 10; int negative = -20; // Signum function calculates and returns following : // for zero value it returns 0.0 // for positive value it returns 1.0 // for negative value it returns -1.0 double zeroSign = Math.signum(zero); double positiveSign = Math.signum(positive); double negativeSign = Math.signum(negative); // printing the values of signum function of integers System.out.println("Signum of " + zero + " is " + zeroSign); System.out.println("Signum of " + negative + " is " + negativeSign); System.out.println("Signum of " + positive + " is " + positiveSign); } } ``` Output of the program :
Program to calculate and print Signum function of a number in Java using Math class.

```package com.hubberspot.code;

public class SignumDemo {

public static void main(String[] args) {

// Creating three ints variable holding
// a negative integer, a positive integer
// and 0 integer.

int zero = 0;
int positive = 10;
int negative = -20;

// Signum function calculates and returns following :
// for zero value it returns 0.0
// for positive value it returns 1.0
// for negative value it returns -1.0

double zeroSign = Math.signum(zero);
double positiveSign = Math.signum(positive);
double negativeSign = Math.signum(negative);

// printing the values of signum function of integers

System.out.println("Signum of " + zero + " is " + zeroSign);
System.out.println("Signum of " + negative + " is " + negativeSign);
System.out.println("Signum of " + positive + " is " + positiveSign);

}

}

```

Output of the program :