StrictMath getExponent() Method In Java

1. The getExponent(double num) is an inbuilt method of StrictMath class which is used to get the unbiased exponent to be used in the representation of a given double argument. It gives rise to two special results:
   • The result will be Double.MAX_EXPONENT + 1 when the given argument is NaN or infinite
   • The result is Double.MIN_EXPONENT – 1 when the argument is zero.

   Syntax :

   public static int getExponent(double num)

   Parameters: The method accepts one parameter num of double type whose unbiased exponent is supposed to be found.

   Return Value: The method returns the unbiased exponent which used in the representation of the given double argument.

   Examples:

   Input: num = 75.45
   Output: 6.0
   
   Input: num = 0.0
   Output: -1023.0
   

   Below program illustrates the java.lang.StrictMath.getExponent() method:

   // Java praogram to illustrate the
   // java.lang.StrictMath.getExponent()
   import java.lang.*;
   
   public class Geeks {
   
       public static void main(String[] args)
       {
   
           double value = 93.5;
   
           /* Here it returns the unbiased exponent which
              is used in the representation of a double*/
           double exp_Value = StrictMath.getExponent(value);
           System.out.print("Exponent of " + value + " = ");
           System.out.println(exp_Value);
       }
   }
   Output:

   Exponent of 93.5 = 6.0
   

2. The getExponent(float num) is an inbuilt method of StrictMath class which is used to get an unbiased exponent, to be used in the representation of a given float argument. It gives rise to two special results:
   • The result will be Float.MAX_EXPONENT + 1 when the given argument is NaN or infinite
   • The result is Float.MIN_EXPONENT – 1 when the argument is zero.

   Syntax :

   public static int getExponent(float num)

   Parameters: This method accepts one parameter num which is of float type whose unbiased exponent we want to find.

   Return Value: The method returns the unbiased exponent which used in the representation of the given float argument.

   Examples:

   Input: num = 10254.25f
   Output: 13.0
   
   Input: num = 10.25f
   Output: 3.0
   

   Below program illustrate the java.lang.StrictMath.getExponent() method:

   // Java praogram to illustrate the
   // java.lang.StrictMath.getExponent()
   import java.lang.*;
   
   public class Geeks {
   
       public static void main(String[] args)
       {
   
           float value = 10254.25f;
   
           /* Here it returns the unbiased exponent which
              is used in the representation of a float*/
           double exp_Value = StrictMath.getExponent(value);
           System.out.print("Exponent of " + value + " = ");
           System.out.println(exp_Value);
       }
   }
   Output:

   Exponent of 10254.25 = 13.0