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How to extract a number after the decimal point using BigDecimal ?
BigDecimal d = BigDecimal.valueOf(1548.5649);
result : extract only : 5649
581
Class BigDecimal. Immutable, arbitrary-precision signed decimal numbers. A BigDecimal consists of an arbitrary precision integer unscaled value and a 32-bit integer scale. If zero or positive, the scale is the number of digits to the right of the decimal point.
To get the decimal part you could do this: double original = 1.432d; double decimal = original % 1d; Note that due to the way that decimals are actually thought of, this might kill any precision you were after.
intValue() is an in-built function which converts this BigDecimal to an integer value. This function discards any fractional part of this BigDecimal. If the result of the conversion is too big to be represented as an integer value, the function returns only the lower-order 32 bits.
BIGINT is to store large integers from negative 263 through positive 263 – 1. The storage size is eight bytes. BIGINT is intended for special cases where INTEGER range is"not sufficient. DECIMAL Valid values are in the range from negative 1038 +1 through positive 1038 – 1.
Try:
BigDecimal d = BigDecimal.valueOf(1548.5649);
BigDecimal result = d.subtract(d.setScale(0, RoundingMode.FLOOR)).movePointRight(d.scale());
System.out.println(result);
prints:
5649
Try BigDecimal.remainder:
BigDecimal d = BigDecimal.valueOf(1548.5649);
BigDecimal fraction = d.remainder(BigDecimal.ONE);
System.out.println(fraction);
// Outputs 0.5649
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