- TIBCO BusinessEvents®
- Standard
- Math

# Math.random()

## Signature

`double random ()`

## Domain

ACTION, CONDITION, QUERY, BUI

## Description

Returns a `double` value with a positive sign, greater than or equal to `0.0` and less than `1.0`. Returned values are chosen pseudorandomly with (approximately) uniform distribution from that range. When this method is first called, it creates a single new pseudorandom-number generator, exactly as if by the expression

>     new java.util.Random

This new pseudorandom-number generator is used thereafter for all calls to this method and is used nowhere else. This method is properly synchronized to allow correct use by more than one thread. However, if many threads need to generate pseudorandom numbers at a great rate, it may reduce contention for each thread to have its own pseudorandom-number generator.

## Parameters

None.

## Returns

Type | Description
--- | ---
`double` | A pseudorandom `double` greater than or equal to `0.0` and less than `1.0`.

## Cautions

none

## See Also

java.util.Random#nextDouble()