Java.lang.StrictMath.getExponent() Method

Description

The java.lang.StrictMath.getExponent(double d) method returns the unbiased exponent used in the representation of a double. It include some cases:

• If the argument is NaN or infinite, then the result is Double.MAX_EXPONENT + 1.
• If the argument is zero or subnormal, then the result is Double.MIN_EXPONENT -1.

Declaration

Following is the declaration for java.lang.StrictMath.getExponent() method

public static int getExponent(double d)

Parameters

• d -- This is the double value.

Return Value

This method returns the unbiased exponent used in the representation of a double.

Exception

• NA

Example

The following example shows the usage of java.lang.StrictMath.getExponent() method.

package com.tutorialspoint;

import java.lang.*;

public class StrictMathDemo {

  public static void main(String[] args) {
  
    double d1 = 16.2 , d2 = 512.3;

    // returns the unbiased exponent used in the representation of a double
    double exponentValue = StrictMath.getExponent(d1); 
    System.out.println("Exponent value of " + d1 + " = " + exponentValue);
        
    exponentValue = StrictMath.getExponent(d2); 
    System.out.println("Exponent value of " + d2 + " = " + exponentValue);
  }
}

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

Exponent value of 16.2 = 4.0
Exponent value of 512.3 = 9.0