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Java bigdecimal toBigIntegerExact example

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Example below demonstrates working of bigdecimal class toBigInteger method. Method default return type is a biginteger class object value.

Java bigdecimal toBigIntegerExact example

     

Example below demonstrates working of bigdecimal class toBigInteger  method. Method default return type is a biginteger class object value.  If the bigdecimal object value is 423.0, method will return 423,  as biginteger objects cannot hold double type values. 
Method generates NumberFormatException, if it finds the bigdecimal value other than integers and double types values. Method also throws ArithmeticException when the bigdecimal object value holds a non zero fractional part.

Syntax for using the method: public BigInteger toBigIntegerExact() 
BigDecimal obj = new BigDecimal(integer);
BigInteger bigInt = new BigDecimal("String");
  bigInt  = obj.toBigIntegerExact();
System.out.println(bigInt); 

Java_bigdecimal_toBigIntegerExact.java

import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.MathContext;

public class Java_bigdecimal_toBigIntegerExact {
  public static void main(String args[]) {

  BigInteger live = new BigInteger("0");

  BigDecimal tech = new BigDecimal(25.000);
  live = tech.toBigIntegerExact();
  System.out.println(" BigDecimal value :" + tech
  ".000"
  "\nmethod generating BigIntegerExact" +
  " value :" + live);

  tech = new BigDecimal(32.000);
  live = tech.toBigIntegerExact();
  System.out.println("\n BigDecimal value :" + tech
  ".000"
  "\nmethod generating BigIntegerExact" +
  " value :" + live);

  tech = new BigDecimal(7895.000);
  live = tech.toBigIntegerExact();
  System.out.println("\n BigDecimal value :" + tech
  ".000"
  "\nmethod generating BigIntegerExact" +
  " value :" + live);

  tech = new BigDecimal(325.00000);
  live = tech.toBigIntegerExact();
  System.out.println("\n BigDecimal value :" + tech
  ".00000"
  "\nmethod generating BigIntegerExact" +
  " value :" + live);

  }
}

Download the code

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Posted on: November 24, 2008

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