StrictMath signum() Method in Java Last Updated : 03 Aug, 2018 Improve Improve Like Article Like Save Share Report The signum(double num) is an inbuilt method of StrictMath class in Java which is used to get the signum method of the argument which means: The result is zero if the argument is zero. The result 1.0 when the argument is greater than zero. The result is -1.0 if the argument is less than zero. Syntax : public static double signum(double num) Parameters : The method accepts a single parameter num of double type representing the parameter whose signum is to be returned. Return Value : The method returns signum function of the argument num. It also gives rise to two different results: The result is NaN when the first argument is NaN . The result is the same as the argument num when num is positive zero or negative zero. Examples: Input: num = 72.88d Output: 1.0 Input: num = -72.88d Output: -1.0 Input: num = 0.0d Output: 0.0 Below program illustrates the working of java.lang.StrictMath.signum(double) method. // Java praogram to illustrate the // java.lang.StrictMath.signum(double) import java.lang.*; public class Geeks { public static void main(String[] args) { double num1 = 46.82d, num2 = 0.0d, num3 = -0.0d, num4 = -18.2d; // It returns 1.0 since the argument is greater than zero double sig_val = StrictMath.signum(num1); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num2); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num3); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num4); System.out.println("Signum Value = " + sig_val); } } Output: Signum Value = 1.0 Signum Value = 0.0 Signum Value = -0.0 Signum Value = -1.0 The signum(float num) is an inbuilt method of StrictMath class in Java which is used to get the signum method of the argument which means: The result is zero if the argument is zero. The result 1.0 when the argument is greater than zero. The result is -1.0 if the argument is less than zero. Syntax : public static float signum(float num) Parameters : The method accepts a single parameter num of float type representing the parameter whose signum is to be returned. Return Value : The method returns signum function of the argument num. It also gives rise to two different results: The result is NaN when the first argument is NaN . The result is the same as the argument num when num is positive zero or negative zero. Examples: Input: num = 11.8f Output: 1.0 Input: num = -55.88f Output: -1.0 Input: num = 0.0f Output: 0.0 Below program illustrates the working of java.lang.StrictMath.signum(float) method: // Java praogram to illustrate the // java.lang.StrictMath.signum(float) import java.lang.*; public class Geeks { public static void main(String[] args) { float num1 = 7.22f, num2 = 0.0f, num3 = -0.0f, num4 = -18.11f; // It returns 1.0 since the argument is greater than zero float sig_val = StrictMath.signum(num1); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num2); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num3); System.out.println("Signum Value = " + sig_val); sig_val = StrictMath.signum(num4); System.out.println("Signum Value = " + sig_val); } } Output: Signum Value = 1.0 Signum Value = 0.0 Signum Value = -0.0 Signum Value = -1.0 Like Article Suggest improvement Next StrictMath rint() Method in Java Share your thoughts in the comments Add Your Comment Please Login to comment...