double value divide With Round - Android java.lang

Android examples for java.lang:Math

  1. HOME
  2. Android
  3. java.lang
  4. Math

Description

double value divide With Round

Demo Code

/*/*from   w w w.  jav a 2s.  c o  m*/
 * Copyright (C) 2012 www.amsoft.cn
 * 
 * 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.
 */
//package com.java2s;

import java.math.BigDecimal;

public class Main {

    public static double divWithRound(double value1, double value2) {
        try {
            return round(div(value1, value2, 2));
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
        return 0.0;
    }

    public static BigDecimal round(double number, int decimal) {
        return new BigDecimal(number).setScale(decimal,
                BigDecimal.ROUND_HALF_UP);
    }

    public static double round(double number) {
        return round(number, 2).doubleValue();
    }

    public static double div(double value1, double value2, int scale)
            throws IllegalAccessException {

        if (scale < 0) {
            throw new IllegalAccessException("<0");
        }
        BigDecimal b1 = new BigDecimal(value1);
        BigDecimal b2 = new BigDecimal(value2);
        return b1.divide(b2, scale).doubleValue();
    }
}

Related Tutorials