Enumeration
enum RoundingMode
public enum RoundingMode {
| CEILING
| DOWN
| FLOOR
| HALF_EVEN
| HALF_UP
| UP
}
Specifies the enumeration class of rounding rules, including six rounding rules. In addition to the five rounding rules of floating-point numbers specified in IEEE 754, the most commonly used rounding off rule is provided.
| Decimal number | UP | DOWN | CEILING | FLOOR | HALF_UP | HALF_EVEN |
|---|---|---|---|---|---|---|
| 7.5 | 8 | 7 | 8 | 7 | 8 | 8 |
| 4.5 | 5 | 4 | 5 | 4 | 5 | 4 |
| -1.1 | -2 | -1 | -1 | -2 | -1 | -1 |
| -4.5 | -5 | -4 | -4 | -5 | -5 | -4 |
| -7.5 | -8 | -7 | -7 | -8 | -8 | -8 |
CEILING
CEILING
Description: Rounds towards positive infinity.
DOWN
DOWN
Description: Rounds towards zero.
FLOOR
FLOOR
Description: Rounds towards negative infinity.
HALF_EVEN
HALF_EVEN
Description: Rounds a number using the rounding half to even method, which is also called "banker's rounding".
HALF_UP
HALF_UP
Description: Rounds off a number.
UP
UP
Description: Rounds away from zero.