bd

BD is easy to use extension for java BigDecimal. The same as BigDecimal it is immutable.

Install

git clone https://github.com/awronski/bd.git
cd bd
mvn install

What is the diffrence between BD and BigDecimal?

• It adds methods for operating on primitive types

    new BigDecimal(2).multiply(new BigDecimal(3.0)).subtract(new BigDecimal(4f));
    new BD(2).multiply(3.0).subtract(4f);

• It operates only on Strings

    new BigDecimal(0.1).multiply(new BigDecimal(1)))  //0.1000000000000000055511151231..
    new BD(0.1).multiply(1));                         //0.1

• It propegates MathContext

    MathContext mc = new MathContext(34, RoundingMode.HALF_UP);
    new BigDecimal("3.112", mc).divide(new BigDecimal("2")).setScale(2); //ArithmeticException
    new BD("3.112", mc).divide("2").setScale(2);                         //1.56

You can even omit the MathContext and the BD will use default one for you (34, HALF_UP)

    new BD("3.112").divide("2").setScale(2);                            //1.56

Other methods

    new BD(1.999).ceil(2);                      //2.00
    new BD(1.999).floor(2);                     //1.99
    new BD(1.455).doubleValue(2);               //1.46
    new BD(-1.455).setScale(2).floatValue();    //-1.46
    new BD(122).net(22).doubleValue(2);         //100.0
    new BD(100).gross(22).doubleValue(2);       //122.0
    new BD(122).tax(22).doubleValue(2);         //22.0

License

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.