Math.round()

Signature

long round (double a)

Domain

action, condition

Description

Returns the closest long to the argument. The result is rounded to an integer by adding 1/2, taking the floor of the result, and casting the result to type long. In other words, the result is equal to the value of the expression:

(long)Math.floor(a + 0.5d)

Special cases:
If the argument is NaN, the result is 0.
If the argument is negative infinity or any value less than or equal to the value of Long.MIN_VALUE, the result is equal to the value of Long.MIN_VALUE.
If the argument is positive infinity or any value greater than or equal to the value of Long.MAX_VALUE, the result is equal to the value of Long.MAX_VALUE.

Parameters

Name	Type	Description
`a`	`double`	A floating-point value to be rounded to a `long`.

Returns

Type	Description
`long`	The value of the argument rounded to the nearest `long` value.

Cautions

none

Example

String result = String.valueOfLong (Math.round (2.4);

Result is: result contains: "2"