Math.ceil()
Signature
double ceil (double a)
Description
Returns the smallest (closest to negative infinity)
double value that is not less than the argument and is
equal to a mathematical integer. Special cases:
If the argument value is already equal to a mathematical
integer, then the result is the same as the argument.
If the argument is NaN or an infinity or positive zero or negative
zero, then the result is the same as the argument.
If the argument value is less than zero but greater than -1.0,
then the result is negative zero.
Note that the value of Math.ceil(x) is exactly the
value of -Math.floor(-x).
Parameters
| Name | Type | Description |
|---|
a | double | A value. |
Returns
| Type | Description |
|---|
double | The smallest (closest to negative infinity)
floating-point value that is not less than the argument
and is equal to a mathematical integer. |
Example
String result = String.valueOfDouble (Math.ceil (2.4));
Result is: result contains: "3"