Java bigdecimal round example

In this example, bigdecimal class round method working is demonstrated. Method return type is a bigdecimal value as per context settings.

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Java bigdecimal round example

     

In this example, bigdecimal class round method working is demonstrated. Method return type is a bigdecimal value as per context settings. 
Method throws NumberFormatException if it finds value other than integer and double. Method also throws ArithmeticException if the rounding mode is UNNECESSARY.

Syntax for using the method: public BigDecimal round(MathContext mc)
BigDecimal objects with names x, y;
System.out.print(x.round(mc));
or
y = x.round(mc);

 

 

Java_bigdecimal_round.java

import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;

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

  MathContext mc = new MathContext(3);

  BigDecimal obj_0 = new BigDecimal(.050),
  obj_1 = new BigDecimal(40.022);
  System.out.println("obj_0 value : " + obj_0);
  System.out.println("method generated " +
  "result : " + obj_0.round(mc));

  System.out.println("obj_1 value : " + obj_1);
  System.out.println("method generated result" +
  " : " + obj_1.round(mc));

  obj_0 = new BigDecimal(0.1220);
  obj_1 = new BigDecimal(.636);

  System.out.println("\nobj_0 value : " + obj_0);
  System.out.println("method generated result" +
  " : " + obj_0.round(mc));

  System.out.println("obj_1 value : " + obj_1);
  System.out.println("method generated result" +
  " : " + obj_1.round(mc));

  obj_0 = new BigDecimal(5.0);
  obj_1 = new BigDecimal(-1.0);

  System.out.println("\nobj_0 value : " + obj_0);
  System.out.println("method generated result" +
  " : " + obj_0.round(mc));

  System.out.println("obj_1 value : " + obj_1);
  System.out.println("method generated result" +
  " : " + obj_1.round(mc));

  }
}

Download the code

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Comments:1
tdy
February 1, 2012
java

import java.math.BigDecimal; import java.math.MathContext; import java.math.RoundingMode;

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