---
title: RandomNumberGenerator Implementations
framework: swift
role: collectionGroup
role_heading: API Collection
path: swift/systemrandomnumbergenerator/randomnumbergenerator-implementations
---

# RandomNumberGenerator Implementations

## Topics

### Instance Methods

- [next()](swift/systemrandomnumbergenerator/next()-2x0ly.md)
- [next()](swift/systemrandomnumbergenerator/next()-70qj7.md)
- [next(upperBound:)](swift/systemrandomnumbergenerator/next(upperbound:).md)