Signum Function 

The following example shows how to use signum function. It is useful to provide a return value in comparison functions for sorting.

File Name  :   com/bethecoder/tutorials/core/integer/IntegerSignum.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.core.integer; public class IntegerSignum {   /**    * @param args    */   public static void main(String[] args) {     /**      * It returns one of the following values,      *  -1 if the specified value is negative      *    0 if the specified value is zero       *   1 if the specified value is positive      */     System.out.println(Integer.signum(-20));     System.out.println(Integer.signum(-20000000));     System.out.println(Integer.signum(0));     System.out.println(Integer.signum(20000000));     System.out.println(Integer.signum(20));   } }

-1
-1
0
1
1