Example usage for java.math BigDecimal multiply

Introduction

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

Prototype

public BigDecimal multiply(BigDecimal multiplicand) 

Source Link

Document

Returns a BigDecimal whose value is (this × multiplicand), and whose scale is (this.scale() + multiplicand.scale()) .

Usage

From source file:com.mmj.app.common.util.DateViewTools.java

/**
 * ,?,/* w w  w  . ja  v a2  s  .  co  m*/
 * 
 * @param end_date
 * @param begin_date
 * @return
 */
public static String getDifferDayHourMin(Date myDate) {
    if (myDate == null) {
        return "1?";
    }
    Long currentTime = System.currentTimeMillis();
    long diff = currentTime - myDate.getTime();

    BigDecimal b1 = new BigDecimal(Long.toString(30l));
    BigDecimal b2 = new BigDecimal(Long.toString(hourPoint));
    long monthPoint = b1.multiply(b2).longValue();

    if (diff <= 0) {
        return "1?";
    } else if (diff <= secPoint) {
        return "?1?";
    } else if (diff <= minPoint) {
        return (diff / secPoint) + "?";
    } else if (diff <= hourPoint) {
        return (diff / minPoint) + "?" + ((diff % minPoint) / secPoint) + "?";
    } else if (diff <= monthPoint) {
        return (diff / hourPoint) + "" + ((diff % hourPoint) / minPoint) + "??";
    } else {
        return format(myDate, "yyyy-MM-dd HH:mm");
    }
}

---

From source file:Main.java

/**
 * NOTE: Arithmetic operations in primitive types may lead to arithmetic overflow. To retain
 * precision, BigDecimal objects are used.
 *
 * @param rgb//w  w w .j av  a  2  s  . c  o m
 * @return
 */
public static int[] convertRGB_8_8_8_To_HSB_32_32_32(int[] rgb) {
    int[] hsb = new int[3];
    int maxChroma = Math.max(Math.max(rgb[0], rgb[1]), rgb[2]);
    int minChroma = Math.min(Math.min(rgb[0], rgb[1]), rgb[2]);
    int diff = maxChroma - minChroma;

    // Hue
    BigDecimal hue;
    if (diff == 0) {
        hue = BigDecimal.ZERO;
    } else if (maxChroma == rgb[0]) {
        float tmp = (rgb[1] - rgb[2]) / (float) diff;
        if (tmp < 0) {
            tmp += 6 * Math.ceil(-tmp / 6.0);
        } else {
            tmp -= 6 * Math.floor(tmp / 6.0);
        }
        hue = BigDecimal.valueOf(tmp);
    } else if (maxChroma == rgb[1]) {
        hue = BigDecimal.valueOf((rgb[2] - rgb[0]) / (float) diff + 2);
    } else {
        hue = BigDecimal.valueOf((rgb[0] - rgb[1]) / (float) diff + 4);
    }
    // [0, 360] -> [0, 0xffffffff]
    hue = hue.multiply(BigDecimal.valueOf(0xffffffffL));
    hue = hue.divide(BigDecimal.valueOf(6), RoundingMode.FLOOR);
    hsb[0] = ByteBuffer.allocate(8).putLong(hue.longValue()).getInt(4);

    // Saturation
    if (maxChroma == 0) {
        hsb[1] = 0;
    } else {
        // [0, 1] -> [0, 0xffffffff]
        BigDecimal sat = BigDecimal.valueOf(diff);
        sat = sat.multiply(BigDecimal.valueOf(0xffffffffL));
        sat = sat.divide(BigDecimal.valueOf(maxChroma), RoundingMode.FLOOR);
        hsb[1] = ByteBuffer.allocate(8).putLong(sat.longValue()).getInt(4);
    }

    // Brightness
    // [0, 255] -> [0, 0xffffffff]
    BigDecimal brightness = BigDecimal.valueOf(maxChroma);
    brightness = brightness.multiply(BigDecimal.valueOf(0xffffffffL));
    brightness = brightness.divide(BigDecimal.valueOf(0xffL), RoundingMode.FLOOR);
    hsb[2] = ByteBuffer.allocate(8).putLong(brightness.longValue()).getInt(4);

    return hsb;
}

---

From source file:org.kuali.kpme.tklm.leave.transfer.validation.BalanceTransferValidationUtils.java

private static boolean validateTransferAmount(BigDecimal transferAmount, AccrualCategory fromCat,
        AccrualCategory toCat, String principalId, LocalDate effectiveDate, AccrualCategoryRule accrualRule) {

    //transfer amount must be less than the max transfer amount defined in the accrual category rule.
    //it cannot be negative.
    boolean isValid = true;

    BigDecimal balance = LmServiceLocator.getAccrualService().getAccruedBalanceForPrincipal(principalId,
            fromCat, effectiveDate);//from   w w  w. j av  a 2 s.c o m

    BigDecimal maxTransferAmount = null;
    BigDecimal adjustedMaxTransferAmount = null;
    if (ObjectUtils.isNotNull(accrualRule.getMaxTransferAmount())) {
        maxTransferAmount = new BigDecimal(accrualRule.getMaxTransferAmount());
        BigDecimal fullTimeEngagement = HrServiceLocator.getJobService()
                .getFteSumForAllActiveLeaveEligibleJobs(principalId, effectiveDate);
        adjustedMaxTransferAmount = maxTransferAmount.multiply(fullTimeEngagement);
    }

    //use override if one exists.
    EmployeeOverrideContract maxTransferAmountOverride = LmServiceLocator.getEmployeeOverrideService()
            .getEmployeeOverride(principalId, fromCat.getLeavePlan(), fromCat.getAccrualCategory(), "MTA",
                    effectiveDate);
    if (ObjectUtils.isNotNull(maxTransferAmountOverride))
        adjustedMaxTransferAmount = new BigDecimal(maxTransferAmountOverride.getOverrideValue());

    if (ObjectUtils.isNotNull(adjustedMaxTransferAmount)) {
        if (transferAmount.compareTo(adjustedMaxTransferAmount) > 0) {
            isValid &= false;
            String fromUnitOfTime = HrConstants.UNIT_OF_TIME.get(fromCat.getUnitOfTime());
            GlobalVariables.getMessageMap().putError("balanceTransfer.transferAmount",
                    "balanceTransfer.transferAmount.maxTransferAmount", adjustedMaxTransferAmount.toString(),
                    fromUnitOfTime);
        }
    }
    // check for a positive amount.
    if (transferAmount.compareTo(BigDecimal.ZERO) < 0) {
        isValid &= false;
        GlobalVariables.getMessageMap().putError("balanceTransfer.transferAmount",
                "balanceTransfer.transferAmount.negative");
    }

    if (transferAmount.compareTo(balance) > 0) {
        isValid &= false;
        GlobalVariables.getMessageMap().putError("balanceTransfer.transferAmount",
                "maxBalance.amount.exceedsBalance");
    }

    return isValid;
}

---

From source file:com.oracle.tutorial.jdbc.StoredProcedureJavaDBSample.java

public static void raisePrice(String coffeeName, double maximumPercentage, BigDecimal[] newPrice)
        throws SQLException {

    Connection con = DriverManager.getConnection("jdbc:default:connection");
    PreparedStatement pstmt = null;
    ResultSet rs = null;//from  w w w.j  a v a 2 s  .  c om
    BigDecimal oldPrice;

    String queryGetCurrentCoffeePrice = "select COFFEES.PRICE " + "from COFFEES "
            + "where COFFEES.COF_NAME = ?";

    pstmt = con.prepareStatement(queryGetCurrentCoffeePrice);
    pstmt.setString(1, coffeeName);
    rs = pstmt.executeQuery();

    if (rs.next()) {
        oldPrice = rs.getBigDecimal(1);
    } else {
        return;
    }

    BigDecimal maximumNewPrice = oldPrice.multiply(new BigDecimal(1 + maximumPercentage));

    // Test if newPrice[0] > maximumNewPrice

    if (newPrice[0].compareTo(maximumNewPrice) == 1) {
        newPrice[0] = maximumNewPrice;
    }

    // Test if newPrice[0] <= oldPrice

    if (newPrice[0].compareTo(oldPrice) < 1) {
        newPrice[0] = oldPrice;
        return;
    }

    String queryUpdatePrice = "update COFFEES " + "set COFFEES.PRICE = ? " + "where COFFEES.COF_NAME = ?";

    pstmt = con.prepareStatement(queryUpdatePrice);
    pstmt.setBigDecimal(1, newPrice[0]);
    pstmt.setString(2, coffeeName);
    pstmt.executeUpdate();
}

---

From source file:com.sunchenbin.store.feilong.core.lang.NumberUtil.java

/**
 *  multiply value./*from ww w .  j  a va2s  .  c  o  m*/
 * 
 * <p>
 * scale: (this.scale() + multiplicand.scale()).
 * </p>
 *
 * @param one
 *            
 * @param two
 *            
 * @return  <br>
 *         if isNotNullOrEmpty(two) return one
 * @see java.math.BigDecimal#multiply(BigDecimal)
 * @since 1.0.8
 */
public static BigDecimal getMultiplyValue(BigDecimal one, Serializable two) {
    if (Validator.isNullOrEmpty(two)) {
        return one;
    }

    BigDecimal multiplicand = ConvertUtil.toBigDecimal(two);
    return one.multiply(multiplicand);
}

---

From source file:com.aegiswallet.utils.WalletUtils.java

public static String getBTCCurrencryValue(Context context, SharedPreferences prefs, BigDecimal amount) {
    String result = "";

    File file = context.getApplicationContext().getFileStreamPath(Constants.BLOCKCHAIN_CURRENCY_FILE_NAME);
    if (file.exists()) {
        JSONObject jsonObject = BasicUtils.parseJSONData(context, Constants.BLOCKCHAIN_CURRENCY_FILE_NAME);
        try {//from w ww  . j  a v a2  s .c  o  m

            if (jsonObject != null) {

                JSONObject newObject = jsonObject
                        .getJSONObject(prefs.getString(Constants.CURRENCY_PREF_KEY, null));
                Double doubleVal = newObject.getDouble("last");
                BigDecimal decimal = BigDecimal.valueOf(doubleVal);

                result = newObject.getString("symbol")
                        + decimal.multiply(amount).setScale(2, RoundingMode.HALF_EVEN).toString();
            }
        } catch (JSONException e) {
            Log.e("Wallet Utils", "JSON Exception " + e.getMessage());
        }
    }

    return result;
}

---

From source file:com.aegiswallet.utils.WalletUtils.java

public static String getWalletCurrencyValue(Context context, SharedPreferences prefs, BigInteger balance) {
    String result = "";

    File file = context.getApplicationContext().getFileStreamPath(Constants.BLOCKCHAIN_CURRENCY_FILE_NAME);
    if (file.exists()) {
        JSONObject jsonObject = BasicUtils.parseJSONData(context, Constants.BLOCKCHAIN_CURRENCY_FILE_NAME);
        try {/*from w w  w . j  a  v  a 2 s  .  c o  m*/

            String balanceInBTC = balance.toString();

            if (balance.longValue() > 0)
                balanceInBTC = BasicUtils.formatValue(balance, Constants.BTC_MAX_PRECISION, 0);
            BigDecimal formattedBalance = new BigDecimal(balanceInBTC);

            if (jsonObject != null) {

                JSONObject newObject = jsonObject
                        .getJSONObject(prefs.getString(Constants.CURRENCY_PREF_KEY, null));
                Double doubleVal = newObject.getDouble("last");
                BigDecimal decimal = BigDecimal.valueOf(doubleVal);

                result = newObject.getString("symbol")
                        + decimal.multiply(formattedBalance).setScale(2, RoundingMode.HALF_EVEN).toString();
            }
        } catch (JSONException e) {
            Log.e("Wallet Utils", "JSON Exception " + e.getMessage());
        }
    }

    return result;
}

---

From source file:com.aoindustries.website.signup.SignupCustomizeManagementActionHelper.java

public static void setRequestAttributes(ServletContext servletContext, HttpServletRequest request,
        HttpServletResponse response, SignupSelectPackageForm signupSelectPackageForm,
        SignupCustomizeServerForm signupCustomizeServerForm,
        SignupCustomizeManagementForm signupCustomizeManagementForm) throws IOException, SQLException {
    AOServConnector rootConn = SiteSettings.getInstance(servletContext).getRootAOServConnector();
    PackageDefinition packageDefinition = rootConn.getPackageDefinitions()
            .get(signupSelectPackageForm.getPackageDefinition());
    if (packageDefinition == null)
        throw new SQLException(
                "Unable to find PackageDefinition: " + signupSelectPackageForm.getPackageDefinition());
    List<PackageDefinitionLimit> limits = packageDefinition.getLimits();

    // Get the total harddrive space in gigabytes
    int totalHardwareDiskSpace = SignupCustomizeServerActionHelper.getTotalHardwareDiskSpace(rootConn,
            signupCustomizeServerForm);//from  w  ww  . j  a  v  a 2s . c o  m

    // Find all the options
    List<Option> backupOnsiteOptions = new ArrayList<Option>();
    List<Option> backupOffsiteOptions = new ArrayList<Option>();
    List<Option> distributionScanOptions = new ArrayList<Option>();
    List<Option> failoverOptions = new ArrayList<Option>();
    for (PackageDefinitionLimit limit : limits) {
        Resource resource = limit.getResource();
        String resourceName = resource.getName();
        if (resourceName.startsWith("backup_onsite_")) {
            int limitPower = limit.getHardLimit();
            if (limitPower == PackageDefinitionLimit.UNLIMITED || limitPower > 0) {
                // This is per gigabyte of physical space
                BigDecimal additionalRate = limit.getAdditionalRate();
                if (additionalRate == null)
                    additionalRate = BigDecimal.valueOf(0, 2);
                backupOnsiteOptions.add(new Option(limit.getPkey(), resource.toString(),
                        additionalRate.multiply(BigDecimal.valueOf(totalHardwareDiskSpace))));
            }
        } else if (resourceName.startsWith("backup_offsite_")) {
            int limitPower = limit.getHardLimit();
            if (limitPower == PackageDefinitionLimit.UNLIMITED || limitPower > 0) {
                // This is per gigabyte of physical space
                BigDecimal additionalRate = limit.getAdditionalRate();
                if (additionalRate == null)
                    additionalRate = BigDecimal.valueOf(0, 2);
                backupOffsiteOptions.add(new Option(limit.getPkey(), resource.toString(),
                        additionalRate.multiply(BigDecimal.valueOf(totalHardwareDiskSpace))));
            }
        }
    }
    // Distribution scan option
    {
        Resource resource = rootConn.getResources().get(Resource.DISTRIBUTION_SCAN);
        if (resource == null) {
            servletContext.log(null,
                    new SQLException("Unable to find Resource: " + Resource.DISTRIBUTION_SCAN));
        } else {
            PackageDefinitionLimit limit = packageDefinition.getLimit(resource);
            if (limit != null) {
                int hard = limit.getHardLimit();
                if (hard == PackageDefinitionLimit.UNLIMITED || hard > 0) {
                    BigDecimal additionalRate = limit.getAdditionalRate();
                    if (additionalRate == null)
                        additionalRate = BigDecimal.valueOf(0, 2);
                    distributionScanOptions
                            .add(new Option(limit.getPkey(), resource.toString(), additionalRate));
                }
            }
        }
    }
    // Failover option
    {
        Resource resource = rootConn.getResources().get(Resource.FAILOVER);
        if (resource == null) {
            servletContext.log(null, new SQLException("Unable to find Resource: " + Resource.FAILOVER));
        } else {
            PackageDefinitionLimit limit = packageDefinition.getLimit(resource);
            if (limit != null) {
                int hard = limit.getHardLimit();
                if (hard == PackageDefinitionLimit.UNLIMITED || hard > 0) {
                    // This is per gigabyte of physical space
                    BigDecimal additionalRate = limit.getAdditionalRate();
                    if (additionalRate == null)
                        additionalRate = BigDecimal.valueOf(0, 2);
                    additionalRate = additionalRate.multiply(BigDecimal.valueOf(totalHardwareDiskSpace));
                    failoverOptions.add(new Option(limit.getPkey(), resource.toString(), additionalRate));

                    // Only once the failover option is available will the MySQL replication option be available
                    Resource mrResource = rootConn.getResources().get(Resource.MYSQL_REPLICATION);
                    if (mrResource == null) {
                        servletContext.log(null,
                                new SQLException("Unable to find Resource: " + Resource.MYSQL_REPLICATION));
                    } else {
                        PackageDefinitionLimit mrLimit = packageDefinition.getLimit(mrResource);
                        if (mrLimit != null) {
                            int mrHard = mrLimit.getHardLimit();
                            if (mrHard == PackageDefinitionLimit.UNLIMITED || mrHard > 0) {
                                BigDecimal mrAdditionalRate = mrLimit.getAdditionalRate();
                                if (mrAdditionalRate == null)
                                    mrAdditionalRate = BigDecimal.valueOf(0, 2);
                                failoverOptions.add(new Option(mrLimit.getPkey(), mrResource.toString(),
                                        additionalRate.add(mrAdditionalRate)));
                            }
                        }
                    }
                }
            }
        }
    }

    if (!backupOnsiteOptions.isEmpty())
        backupOnsiteOptions.add(0, new Option(-1, "No On-Site Backup", BigDecimal.valueOf(0, 2)));
    if (!backupOffsiteOptions.isEmpty())
        backupOffsiteOptions.add(0, new Option(-1, "No Off-Site Backup", BigDecimal.valueOf(0, 2)));
    if (!distributionScanOptions.isEmpty())
        distributionScanOptions.add(0, new Option(-1, "No daily scans", BigDecimal.valueOf(0, 2)));
    if (!failoverOptions.isEmpty())
        failoverOptions.add(0, new Option(-1, "No Fail-Over Mirror", BigDecimal.valueOf(0, 2)));

    // Sort by price
    Collections.sort(backupOnsiteOptions, new Option.PriceComparator());
    Collections.sort(backupOffsiteOptions, new Option.PriceComparator());
    Collections.sort(distributionScanOptions, new Option.PriceComparator());
    Collections.sort(failoverOptions, new Option.PriceComparator());

    // Clear any customization settings that are not part of the current package definition (this happens when they
    // select a different package type)
    if (signupCustomizeManagementForm.getBackupOnsiteOption() != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits()
                .get(signupCustomizeManagementForm.getBackupOnsiteOption());
        if (pdl == null || !packageDefinition.equals(pdl.getPackageDefinition()))
            signupCustomizeManagementForm.setBackupOnsiteOption(-1);
    }
    if (signupCustomizeManagementForm.getBackupOffsiteOption() != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits()
                .get(signupCustomizeManagementForm.getBackupOffsiteOption());
        if (pdl == null || !packageDefinition.equals(pdl.getPackageDefinition()))
            signupCustomizeManagementForm.setBackupOffsiteOption(-1);
    }
    if (signupCustomizeManagementForm.getDistributionScanOption() != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits()
                .get(signupCustomizeManagementForm.getDistributionScanOption());
        if (pdl == null || !packageDefinition.equals(pdl.getPackageDefinition()))
            signupCustomizeManagementForm.setDistributionScanOption(-1);
    }
    if (signupCustomizeManagementForm.getFailoverOption() != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits()
                .get(signupCustomizeManagementForm.getFailoverOption());
        if (pdl == null || !packageDefinition.equals(pdl.getPackageDefinition()))
            signupCustomizeManagementForm.setFailoverOption(-1);
    }

    // Store to request
    request.setAttribute("packageDefinition", packageDefinition);
    request.setAttribute("hardwareRate", SignupCustomizeServerActionHelper.getHardwareMonthlyRate(rootConn,
            signupCustomizeServerForm, packageDefinition));
    request.setAttribute("backupOnsiteOptions", backupOnsiteOptions);
    request.setAttribute("backupOffsiteOptions", backupOffsiteOptions);
    request.setAttribute("distributionScanOptions", distributionScanOptions);
    request.setAttribute("failoverOptions", failoverOptions);
}

---

From source file:org.openbravo.erpCommon.utility.CashVATUtil.java

/**
 * Generic method to calculate the percentage of an amount (totalAmt) with the currency's standard
 * precision/*w  ww .j a  va 2  s . c  o m*/
 * 
 * @param percentage
 *          percentage to apply for the totalAmt
 * @param totalAmt
 *          total amount (represents 100%)
 * @param currency
 *          currency
 * @return percentage * totalAmt / 100, rounded to the currency's standard precision
 */
public static BigDecimal calculatePercentageAmount(final BigDecimal percentage, final BigDecimal totalAmt,
        final Currency currency) {
    try {
        OBContext.setAdminMode(true);
        if (currency != null) {
            int precission = currency.getStandardPrecision().intValue();
            return percentage.multiply(totalAmt).divide(_100, precission, RoundingMode.HALF_UP);
        }
    } finally {
        OBContext.restorePreviousMode();
    }
    throw new RuntimeException("CashVATUtil.calculatePercentageAmount(), wrong parameters :" + percentage + ", "
            + totalAmt + ", " + currency);
}

---

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

/**
 * multiplication is done in ordinar way and rounded and scaled after. <br/>
 * <b>if you're going to multiply and then divide</b> then use BigDecimal.multiply and then Utils.divide since it will round and scale for you.
 *//*  ww w  . j  a va 2s. c  o m*/
public static BigDecimal multiplyWithRS(BigDecimal m1, BigDecimal m2, int scale) {
    if (m1 == null || m2 == null) {
        return null;
    }
    return m1.multiply(m2).setScale(scale, getRoundingMode());
}

---

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