Uses of Class
java.util.Random

Packages that use Random
Package
Description
java.math
Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).
java.security
Provides the classes and interfaces for the security framework.
java.util
Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
java.util.concurrent
Utility classes commonly useful in concurrent programming.

  • Uses of Random in java.math

    Methods in java.math with parameters of type Random
    Modifier and Type
    Method
    Description
    static BigInteger
    BigInteger.probablePrime(int bitLength, Random rnd)
    Returns a positive BigInteger that is probably prime, with the specified bitLength.
    Constructors in java.math with parameters of type Random
    Modifier
    Constructor
    Description
     
    BigInteger(int bitLength, int certainty, Random rnd)
    Constructs a randomly generated positive BigInteger that is probably prime, with the specified bitLength.
     
    BigInteger(int numBits, Random rnd)
    Constructs a randomly generated BigInteger, uniformly distributed over the range 0 to (2numBits - 1), inclusive.

  • Uses of Random in java.security

    Subclasses of Random in java.security
    Modifier and Type
    Class
    Description
    class 
    SecureRandom
    This class provides a cryptographically strong random number generator (RNG).

  • Uses of Random in java.util

    Methods in java.util with parameters of type Random
    Modifier and Type
    Method
    Description
    static void
    Collections.shuffle(List<?> list, Random rnd)
    Randomly permute the specified list using the specified source of randomness.

  • Uses of Random in java.util.concurrent

    Subclasses of Random in java.util.concurrent
    Modifier and Type
    Class
    Description
    class 
    ThreadLocalRandom
    A random number generator (with period 264) isolated to the current thread.