Java.lang.Integer.signum() Method

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Description

The java.lang.Integer.signum() method returns the signum function of the specified int value.

Declaration

Following is the declaration for java.lang.Integer.signum() method

public static int signum(int i)

Parameters

i − This is the int value.

Return Value

This method returns the signum function of the specified int value.It is -1 if the specified value is negative, 0 if the specified value is zero and 1 if the specified value is positive.

Exception

NA

Example

The following example shows the usage of java.lang.Integer.signum() method.

package com.tutorialspoint;

import java.lang.*;

public class IntegerDemo {

   public static void main(String[] args) {

      // returns 1 as int value is greater than 1
      System.out.println(Integer.signum(50));

      // returns -1 as int value is less than 1
      System.out.println(Integer.signum(-50));

      // returns 0 as int value is equal to 0
      System.out.println(Integer.signum(0));
   }
} 

Let us compile and run the above program, this will produce the following result −

1
-1
0