Java.math.BigDecimal.longValueExact() Method

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Description

The java.math.BigDecimal.longValueExact()converts this BigDecimal to a long, checking for lost information. If this BigDecimal has a nonzero fractional part or is out of the possible range for a long result then an ArithmeticException is thrown.

Declaration

Following is the declaration for java.math.BigDecimal.longValueExact() method.

public long longValueExact()

Parameters

NA

Return Value

This method returns the long value of the BigDecimal Object.

Exception

ArithmeticException − If this has a nonzero fractional part, or will not fit in a long.

Example

The following example shows the usage of math.BigDecimal.longValueExact() method.

package com.tutorialspoint;

import java.math.*;

public class BigDecimalDemo {

   public static void main(String[] args) {

      // create 2 BigDecimal objects
      BigDecimal bg1, bg2;

      // create 2 long objecs
      long l1,l2;

      bg1 = new BigDecimal("-429");
      bg2 = new BigDecimal("3.3E+10");

      // assign the long value of bg1 and bg2 to l1,l2 respectively
      l1 = bg1.longValueExact();
      l2 = bg2.longValueExact();

      String str1 = "Exact Long value of " + bg1 + " is " + l1;
      String str2 = "Exact Long value of " + bg2 + " is " + l2;

      // print l1,l2 values
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

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

Exact Long value of -429 is -429
Exact Long value of 3.3E+10 is 33000000000