Narrower primitive types can be cast to wider types without affecting the magnitude of numeric values. However, when the expressions are not strictfp (guideline FLP04-J. Use the strictfp modifier for floating point calculation consistency), conversions from float to double may lose information about the overall magnitude of the converted value (see . See JLS Section 5.1.2, Widening Primitive Conversion) for more information.
Conversion from int or long to float, or long to double can lead to loss of precision (loss of least significant bits). No runtime exception occurs despite this loss. Also, see guideline EXP05-J. Be aware of integer promotions in binary operators.
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Casting numeric types to wider floating-point types may lose information.
Rule Guideline | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
INT03-J | low | unlikely | medium | P2 | L3 |
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