BigDecimal
constructors that accept a double
value.
These constructors produce BigDecimal
that is exactly equal to the supplied double
value.
However, because doubles are encoded in the IEEE 754 64-bit double-precision binary floating-point format, the exact value can be unexpected.
For example, new BigDecimal(0.1)
yields a BigDecimal
object. Its value is
0.1000000000000000055511151231257827021181583404541015625
which is the nearest number to 0.1 representable as a double.
To get BigDecimal
that stores the same value as written in the source code,
use either new BigDecimal("0.1")
or BigDecimal.valueOf(0.1)
.
Example:
class Constructor {
void foo() {
new BigDecimal(0.1);
}
}
After the quick-fix is applied:
class Constructor {
void foo() {
new BigDecimal("0.1");
}
}