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Java bigdecimal toBigInteger 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 toBigInteger 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 201.0, method will return 201 as biginteger objects cannot hold double type values. 

Method generates NumberFormatException, if it finds the bigdecimal value other than integers and double types values. 

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

Java_bigdecimal_toBigInteger.java

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

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

  BigInteger bigInt = new BigInteger("0");

  BigDecimal big_0 = new BigDecimal(Math.PI);
  bigInt = big_0.toBigInteger();
  System.out.println(" BigDecimal value :" + big_0
  "\nmethod generating BigInteger value" +
  " :" + bigInt);

  big_0 = new BigDecimal(Math.E);
  bigInt = big_0.toBigInteger();
  System.out.println("\n BigDecimal value :" + big_0
  "\nmethod generating BigInteger value" +
  " :" + bigInt);

  big_0 = new BigDecimal(20.2);
  bigInt = big_0.toBigInteger();
  System.out.println("\n BigDecimal value :" + big_0
  "\nmethod generating BigInteger value" +
  " :" + bigInt);

  big_0 = new BigDecimal(325.02535);
  bigInt = big_0.toBigInteger();
  System.out.println("\n BigDecimal value :" + big_0
  "\nmethod generating BigInteger value" +
  " :" + bigInt);

  }
}

Download the code

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Posted on: November 24, 2008

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