Java Utililty Methods BigDecimal

List of utility methods to do BigDecimal

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Description

The list of methods to do BigDecimal are organized into topic(s).

Method

floatpercentChange(BigDecimal oldValue, BigDecimal newValue)
percent Change 
return divide(newValue.subtract(oldValue), oldValue).multiply(HUNDRED).floatValue();
BigDecimalpercentOf(BigDecimal fullAmount, int percentToKeep)
percent Of 
return fullAmount.divide(new BigDecimal("100.00")).multiply(new BigDecimal(percentToKeep)).setScale(2);
BigDecimalpercentToFactor(BigDecimal percent)
percent To Factor 
int PERCENT_DECIMAL_SHIFT = 2;
return percent.movePointLeft(PERCENT_DECIMAL_SHIFT);
StringprintBigDecimal(BigDecimal decimal)
print Big Decimal 
return String.format("%.2f", decimal);
StringprintGainHTML(BigDecimal gain)
print Gain HTML 
String htmlString, arrow;
if (gain.doubleValue() < 0.0) {
    htmlString = "<FONT color=\"#ff0000\">";
    arrow = "arrowdown.gif";
} else {
    htmlString = "<FONT color=\"#009900\">";
    arrow = "arrowup.gif";
htmlString += gain.setScale(SCALE, ROUND) + "</FONT><IMG src=\"images/" + arrow
        + "\" width=\"10\" height=\"10\" border=\"0\"></IMG>";
return htmlString;
intputBigDecimal(byte[] bytes, int offset, BigDecimal val)
Put a BigDecimal value out to the specified byte array position. 
if (bytes == null) {
    return offset;
byte[] valueBytes = val.unscaledValue().toByteArray();
byte[] result = new byte[valueBytes.length + SIZEOF_INT];
offset = putInt(result, offset, val.scale());
return putBytes(result, offset, valueBytes, 0, valueBytes.length);
BigDecimalrandomBigDecimal()
random Big Decimal 
return BigDecimal.valueOf(randomdouble());
ListrandomBigDecimalList(BigDecimal min, BigDecimal max, int minLength, int maxLength)
Returns a list of randomly generated BigDecimals using the minimum and maximum data point values and the minimum and maximum lengths. 
try {
    if (min.compareTo(max) > 0 || minLength >= maxLength) {
        throw new IndexOutOfBoundsException("Index out of bounds generating random big decimal list.");
    List<BigDecimal> list = new ArrayList<BigDecimal>();
    int length = ThreadLocalRandom.current().nextInt(minLength, maxLength + 1);
    for (int i = 0; i < length; i++) {
        BigDecimal random = min.add(new BigDecimal(Math.random()).multiply(max.subtract(min)));
...
BigDecimalrangedValue(BigDecimal lower, BigDecimal upper, Random random)
Generates a new BigDecimal that lies within the specified range. 
BigDecimal difference = upper.subtract(lower);
BigDecimal fraction = BigDecimal.valueOf(random.nextDouble());
return lower.add(difference.multiply(fraction));
BigDecimalreadBigDecimal(byte valueBytes[], int valueLength, int scale)
read Big Decimal 
int sign = (0 == valueBytes[0]) ? -1 : 1;
byte[] magnitude = new byte[valueLength - 1];
for (int i = 1; i <= magnitude.length; i++)
    magnitude[magnitude.length - i] = valueBytes[i];
return new BigDecimal(new BigInteger(sign, magnitude), scale);