StrictMath getExponent() Method In Java

• Last Updated : 19 Jul, 2018
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

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