Example usage for java.math BigDecimal movePointRight

Introduction

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

Prototype

public BigDecimal movePointRight(int n) 

Source Link

Document

Returns a BigDecimal which is equivalent to this one with the decimal point moved n places to the right.

Usage

From source file:Main.java

public static void main(String[] args) {

    BigDecimal bg1 = new BigDecimal("123.23");
    BigDecimal bg2 = new BigDecimal("12323");

    BigDecimal bg3 = bg1.movePointRight(3); // 3 places right
    BigDecimal bg4 = bg2.movePointRight(-2);// 2 places left

    System.out.println(bg3);//w ww  . ja  v a  2  s.  c om
    System.out.println(bg4);
}

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From source file:Main.java

public static void main(String... args) {
    long base = 12345;
    int scale = 4;

    BigDecimal number = BigDecimal.valueOf(base, scale);
    System.out.println(number);//w  ww  .j  a va2s  .  c  o m
    BigDecimal pointRight = number.movePointRight(5);
    System.out.println(pointRight + "; my scale is " + pointRight.scale());
    BigDecimal scaleBy = number.scaleByPowerOfTen(5);
    System.out.println(scaleBy + "; my scale is " + scaleBy.scale());
}

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From source file:Main.java

public static String formatAmountConversionRate(double convRate) {
    if (convRate == 0)
        return null;
    BigDecimal cr = new BigDecimal(convRate);
    int x = 7 - cr.precision() + cr.scale();
    String bds = cr.movePointRight(cr.scale()).toString();
    if (x > 9)
        bds = zeropad(bds, bds.length() + x - 9);
    String ret = zeropadRight(bds, 7);
    return Math.min(9, x) + takeFirstN(ret, 7);
}

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From source file:Main.java

/**
 * Compute the square root of x to a given scale, x >= 0. Use Newton's
 * algorithm./*from   w w  w. j  av a 2s  .co  m*/
 * 
 * @param x
 *            the value of x
 * @return the result value
 */
public static BigDecimal sqrt(BigDecimal x) {
    // Check that x >= 0.
    if (x.signum() < 0) {
        throw new ArithmeticException("x < 0");
    }

    // n = x*(10^(2*SCALE))
    BigInteger n = x.movePointRight(SCALE << 1).toBigInteger();

    // The first approximation is the upper half of n.
    int bits = (n.bitLength() + 1) >> 1;
    BigInteger ix = n.shiftRight(bits);
    BigInteger ixPrev;

    // Loop until the approximations converge
    // (two successive approximations are equal after rounding).
    do {
        ixPrev = ix;

        // x = (x + n/x)/2
        ix = ix.add(n.divide(ix)).shiftRight(1);

        Thread.yield();
    } while (ix.compareTo(ixPrev) != 0);

    return new BigDecimal(ix, SCALE);
}

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From source file:Main.java

/**
 * Parses an xs:dateTime attribute value, returning the parsed timestamp in milliseconds since
 * the epoch.//w  w w  .  ja  va 2s .  co m
 *
 * @param value The attribute value to parse.
 * @return The parsed timestamp in milliseconds since the epoch.
 */
public static long parseXsDateTime(String value) throws ParseException {
    Matcher matcher = XS_DATE_TIME_PATTERN.matcher(value);
    if (!matcher.matches()) {
        throw new ParseException("Invalid date/time format: " + value, 0);
    }

    int timezoneShift;
    if (matcher.group(9) == null) {
        // No time zone specified.
        timezoneShift = 0;
    } else if (matcher.group(9).equalsIgnoreCase("Z")) {
        timezoneShift = 0;
    } else {
        timezoneShift = ((Integer.parseInt(matcher.group(12)) * 60 + Integer.parseInt(matcher.group(13))));
        if (matcher.group(11).equals("-")) {
            timezoneShift *= -1;
        }
    }

    Calendar dateTime = new GregorianCalendar(TimeZone.getTimeZone("GMT"));

    dateTime.clear();
    // Note: The month value is 0-based, hence the -1 on group(2)
    dateTime.set(Integer.parseInt(matcher.group(1)), Integer.parseInt(matcher.group(2)) - 1,
            Integer.parseInt(matcher.group(3)), Integer.parseInt(matcher.group(4)),
            Integer.parseInt(matcher.group(5)), Integer.parseInt(matcher.group(6)));
    if (!TextUtils.isEmpty(matcher.group(8))) {
        final BigDecimal bd = new BigDecimal("0." + matcher.group(8));
        // we care only for milliseconds, so movePointRight(3)
        dateTime.set(Calendar.MILLISECOND, bd.movePointRight(3).intValue());
    }

    long time = dateTime.getTimeInMillis();
    if (timezoneShift != 0) {
        time -= timezoneShift * 60000;
    }

    return time;
}

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From source file:de.jfachwert.math.Bruch.java

private static Bruch toBruch(BigDecimal decimal) {
    int scale = decimal.scale();
    BigInteger z = decimal.movePointRight(scale).toBigInteger();
    BigInteger n = BigDecimal.ONE.movePointRight(scale).toBigInteger();
    return Bruch.of(z, n).kuerzen();
}

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From source file:com.squarespace.template.plugins.platform.CommerceUtils.java

public static double getLegacyPriceFromMoneyNode(JsonNode moneyNode) {
    BigDecimal price = getAmountFromMoneyNode(moneyNode);
    return price.movePointRight(2).doubleValue();
}

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From source file:com.tesora.dve.mysqlapi.repl.messages.MyUserVarLogEvent.java

BigDecimal decodeBinDecimal(ByteBuf cb, int bufferLen, boolean isIntegerPortion) throws PEException {
    BigDecimal decimalPortion = new BigDecimal(0);
    if (bufferLen > 0) {

        ByteBuf decimalPortionBuf = cb.readBytes(bufferLen);

        if (isIntegerPortion) {
            int initialBytes = bufferLen % 4;
            if (initialBytes > 0) {
                long intValue = readValue(decimalPortionBuf, initialBytes);
                decimalPortion = BigDecimal.valueOf(intValue);
            }/*from   w w  w.ja  v  a 2  s .co  m*/
        }

        int decimalPortionLen = decimalPortionBuf.readableBytes();

        while (decimalPortionLen > 0) {
            int nextLen = (decimalPortionLen < 4) ? decimalPortionLen : 4;
            long intValue = readValue(decimalPortionBuf, nextLen);

            if (intValue > 0) {
                if (decimalPortion.longValue() == 0) {
                    decimalPortion = decimalPortion.add(BigDecimal.valueOf(intValue));
                } else {
                    int digits = (int) (Math.log10(intValue) + 1);
                    decimalPortion = decimalPortion.movePointRight(digits).add(BigDecimal.valueOf(intValue));
                }
            }

            decimalPortionLen = decimalPortionBuf.readableBytes();
        }
    }
    return decimalPortion;
}

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From source file:com.healthmarketscience.jackcess.Column.java

/**
 * Writes "Currency" values.//from  w  ww  .  j  a  v a2  s .co  m
 */
private static void writeCurrencyValue(ByteBuffer buffer, Object value) throws IOException {
    Object inValue = value;
    try {
        BigDecimal decVal = toBigDecimal(value);
        inValue = decVal;

        // adjust scale (will cause the an ArithmeticException if number has too
        // many decimal places)
        decVal = decVal.setScale(4);

        // now, remove scale and convert to long (this will throw if the value is
        // too big)
        buffer.putLong(decVal.movePointRight(4).longValueExact());
    } catch (ArithmeticException e) {
        throw (IOException) new IOException("Currency value '" + inValue + "' out of range").initCause(e);
    }
}

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From source file:org.apache.calcite.runtime.SqlFunctions.java

/** SQL <code>ROUND</code> operator applied to BigDecimal values. */
public static BigDecimal sround(BigDecimal b0, int b1) {
    return b0.movePointRight(b1).setScale(0, RoundingMode.HALF_UP).movePointLeft(b1);
}

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