Example usage for java.math BigDecimal divide

Introduction

In this page you can find the example usage for java.math BigDecimal divide.

Prototype

public BigDecimal divide(BigDecimal divisor, int scale, RoundingMode roundingMode)

Source Link

Document

Returns a BigDecimal whose value is (this / divisor) , and whose scale is as specified.

Usage

From source file:es.juntadeandalucia.panelGestion.negocio.utiles.Utils.java

public static String formatSize(Integer size) {
    String formattedFileSize = "";
    if (size != null) {
        BigDecimal kb = BigDecimal.valueOf(1024);
        BigDecimal mb = BigDecimal.valueOf(1048576);
        BigDecimal fileSizeBD = BigDecimal.valueOf(size);
        if (size > 999999) {
            formattedFileSize = fileSizeBD.divide(mb, 2, RoundingMode.HALF_UP).toPlainString();
            formattedFileSize += " MB";
        } else if (size > 999) {
            formattedFileSize = fileSizeBD.divide(kb, 2, RoundingMode.HALF_UP).toPlainString();
            formattedFileSize += " KB";
        } else {//  w w w .  j  a v a 2s  .c o m
            formattedFileSize = fileSizeBD.toPlainString();
            formattedFileSize += " B";
        }
    }
    return formattedFileSize;
}

From source file:Main.java

/**
 * Compute the integral root of x to a given scale, x >= 0.
 * Use Newton's algorithm./*w  w w. j  a  v  a 2 s.co m*/
 * @param x the value of x
 * @param index the integral root value
 * @param scale the desired scale of the result
 * @return the result value
 */
public static BigDecimal intRoot(BigDecimal x, long index, int scale) {
    // Check that x >= 0.
    if (x.signum() < 0) {
        throw new IllegalArgumentException("x < 0");
    }

    int sp1 = scale + 1;
    BigDecimal n = x;
    BigDecimal i = BigDecimal.valueOf(index);
    BigDecimal im1 = BigDecimal.valueOf(index - 1);
    BigDecimal tolerance = BigDecimal.valueOf(5).movePointLeft(sp1);
    BigDecimal xPrev;

    // The initial approximation is x/index.
    x = x.divide(i, scale, BigDecimal.ROUND_HALF_EVEN);

    // Loop until the approximations converge
    // (two successive approximations are equal after rounding).
    do {
        // x^(index-1)
        BigDecimal xToIm1 = intPower(x, index - 1, sp1);

        // x^index
        BigDecimal xToI = x.multiply(xToIm1).setScale(sp1, BigDecimal.ROUND_HALF_EVEN);

        // n + (index-1)*(x^index)
        BigDecimal numerator = n.add(im1.multiply(xToI)).setScale(sp1, BigDecimal.ROUND_HALF_EVEN);

        // (index*(x^(index-1))
        BigDecimal denominator = i.multiply(xToIm1).setScale(sp1, BigDecimal.ROUND_HALF_EVEN);

        // x = (n + (index-1)*(x^index)) / (index*(x^(index-1)))
        xPrev = x;
        x = numerator.divide(denominator, sp1, BigDecimal.ROUND_DOWN);

        Thread.yield();
    } while (x.subtract(xPrev).abs().compareTo(tolerance) > 0);

    return x;
}

From source file:org.cirdles.ambapo.LatLongToUTM.java

/**
 * Returns the zone number that the longitude corresponds to on the UTM map
 * /*from   ww  w.  ja va 2  s  .c o m*/
 * @param longitude
 * @return int zone number
 * 
 * 
 */
private static int calcZoneNumber(BigDecimal longitude) {
    int zoneNumber;
    BigDecimal six = new BigDecimal(6);

    if (longitude.signum() < 0) {

        BigDecimal oneEighty = new BigDecimal(180);
        zoneNumber = ((oneEighty.add(longitude)).divide(six, PRECISION, RoundingMode.HALF_UP)).intValue() + 1;
    }

    else {

        BigDecimal thirtyOne = new BigDecimal(31);
        zoneNumber = ((longitude.divide(six, PRECISION, RoundingMode.HALF_UP)).abs().add(thirtyOne)).intValue();
    }

    if (zoneNumber > 60)
        zoneNumber = 60;

    if (zoneNumber < 1)
        zoneNumber = 1;

    return zoneNumber;

}

From source file:com.vsthost.rnd.commons.math.ext.linear.DMatrixUtils.java

/**
 * Returns the DOWN rounded value of the given value for the given steps.
 *
 * @param value The original value to be rounded.
 * @param steps The steps./*from   ww  w.jav  a 2s  .c o m*/
 * @return The DOWN rounded value of the given value for the given steps.
 */
public static BigDecimal roundDownTo(double value, double steps) {
    final BigDecimal bValue = BigDecimal.valueOf(value);
    final BigDecimal bSteps = BigDecimal.valueOf(steps);

    if (Objects.equals(bSteps, BigDecimal.ZERO)) {
        return bValue;
    } else {
        return bValue.divide(bSteps, 0, RoundingMode.FLOOR).multiply(bSteps);
    }
}

From source file:com.vsthost.rnd.commons.math.ext.linear.DMatrixUtils.java

/**
 * Returns the UP rounded value of the given value for the given steps.
 *
 * @param value The original value to be rounded.
 * @param steps The steps.//from  ww  w.j  a v a  2  s  .  co  m
 * @return The UP rounded value of the given value for the given steps.
 */
public static BigDecimal roundUpTo(double value, double steps) {
    final BigDecimal bValue = BigDecimal.valueOf(value);
    final BigDecimal bSteps = BigDecimal.valueOf(steps);

    if (Objects.equals(bSteps, BigDecimal.ZERO)) {
        return bValue;
    } else {
        return bValue.divide(bSteps, 0, RoundingMode.CEILING).multiply(bSteps);
    }
}

From source file:org.sparkcommerce.core.offer.service.discount.domain.PromotableOfferUtility.java

public static Money computeAdjustmentValue(Money currentPriceDetailValue, BigDecimal offerUnitValue,
        OfferHolder offerHolder, PromotionRounding rounding) {
    Offer offer = offerHolder.getOffer();
    SparkCurrency currency = offerHolder.getCurrency();

    OfferDiscountType discountType = offer.getDiscountType();
    Money adjustmentValue;//from w  ww .ja  v  a  2  s.  co  m
    if (currency != null) {
        adjustmentValue = new Money(currency);
    } else {
        adjustmentValue = new Money();
    }

    if (OfferDiscountType.AMOUNT_OFF.equals(discountType)) {
        adjustmentValue = new Money(offerUnitValue, currency);
    }

    if (OfferDiscountType.FIX_PRICE.equals(discountType)) {
        adjustmentValue = currentPriceDetailValue.subtract(new Money(offerUnitValue, currency));
    }

    if (OfferDiscountType.PERCENT_OFF.equals(discountType)) {
        BigDecimal offerValue = currentPriceDetailValue.getAmount()
                .multiply(offerUnitValue.divide(new BigDecimal("100"), 5, RoundingMode.HALF_EVEN));

        if (rounding.isRoundOfferValues()) {
            offerValue = offerValue.setScale(rounding.getRoundingScale(), rounding.getRoundingMode());
        }
        adjustmentValue = new Money(offerValue, currency);
    }

    if (currentPriceDetailValue.lessThan(adjustmentValue)) {
        adjustmentValue = currentPriceDetailValue;
    }
    return adjustmentValue;
}

From source file:org.broadleafcommerce.core.offer.service.discount.domain.PromotableOfferUtility.java

public static Money computeAdjustmentValue(Money currentPriceDetailValue, BigDecimal offerUnitValue,
        OfferHolder offerHolder, PromotionRounding rounding) {
    Offer offer = offerHolder.getOffer();
    BroadleafCurrency currency = offerHolder.getCurrency();

    OfferDiscountType discountType = offer.getDiscountType();
    Money adjustmentValue;/*from  w  w  w . j a  v a2s  .  co  m*/
    if (currency != null) {
        adjustmentValue = new Money(currency);
    } else {
        adjustmentValue = new Money();
    }

    if (OfferDiscountType.AMOUNT_OFF.equals(discountType)) {
        adjustmentValue = new Money(offerUnitValue, currency);
    }

    if (OfferDiscountType.FIX_PRICE.equals(discountType)) {
        adjustmentValue = currentPriceDetailValue.subtract(new Money(offerUnitValue, currency));
    }

    if (OfferDiscountType.PERCENT_OFF.equals(discountType)) {
        BigDecimal offerValue = currentPriceDetailValue.getAmount()
                .multiply(offerUnitValue.divide(new BigDecimal("100"), 5, RoundingMode.HALF_EVEN));

        if (rounding.isRoundOfferValues()) {
            offerValue = offerValue.setScale(rounding.getRoundingScale(), rounding.getRoundingMode());
        }
        adjustmentValue = new Money(offerValue, currency);
    }

    if (currentPriceDetailValue.lessThan(adjustmentValue)) {
        adjustmentValue = currentPriceDetailValue;
    }
    return adjustmentValue;
}

From source file:ru.anr.base.BaseParent.java

/**
 * Short-cut for division with specific//  www.  jav  a2 s  .co  m
 * 
 * @param a
 *            A divided value
 * @param b
 *            A divisor
 * 
 * @param scale
 *            The scale
 * @return New {@link BigDecimal} in the specified scale
 */
public static final BigDecimal div(BigDecimal a, BigDecimal b, int scale) {

    return a.divide(b, scale, RoundingMode.HALF_UP);
}

From source file:com.webbfontaine.valuewebb.model.util.Utils.java

public static BigDecimal divide(BigDecimal dividend, BigDecimal divisor, int scale) {

    BigDecimal retVal;//  w  ww.  java2s.c o  m

    if (dividend.doubleValue() == 0) {
        retVal = dividend;
    } else {

        if (divisor == null || divisor.doubleValue() == 0) {
            LOGGER.debug("Division by zero, result will be 'null' !!!");
            retVal = null;
        } else {
            retVal = dividend.divide(divisor, scale, getRoundingMode());
        }
    }

    return retVal;
}

From source file:org.fenixedu.academic.domain.accounting.events.gratuity.ExternalScholarshipGratuityExemption.java

public BigDecimal calculateDiscountPercentage(Money amount) {
    final BigDecimal amountToDiscount = new BigDecimal(getValue().toString());
    return amountToDiscount.divide(amount.getAmount(), 10, RoundingMode.HALF_EVEN);
}