Package org.instancio.internal.random

Class RandomProvider

java.lang.Object

org.instancio.internal.random.RandomProvider

public class RandomProvider
extends Object

Constructor Summary

Constructors

Constructor	Description
RandomProvider()	Create an instance with a random seed value.
RandomProvider(int seed)	Create an instance with a seed value.

Method Summary

Modifier and Type	Method	Description
String	alphabetic(int length)
byte	byteBetween(byte min, byte max)
char	character()
boolean	diceRoll(boolean precondition)
double	doubleBetween(double min, double max)
float	floatBetween(float min, float max)
<T> T	from(Collection<T> collection)
<T> T	from(T[] array)
int	getSeed()
int	intBetween(int min, int max)
long	longBetween(long min, long max)
short	shortBetween(short min, short max)
boolean	trueOrFalse()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RandomProvider

public RandomProvider(int seed)

Create an instance with a seed value.

Parameters:

seed - for the random generator

RandomProvider

public RandomProvider()

Create an instance with a random seed value.

Method Detail

getSeed

public int getSeed()

trueOrFalse

public boolean trueOrFalse()

Returns:

a random true or false value with a 0.5 probability.

diceRoll

public boolean diceRoll(boolean precondition)

Parameters:

precondition - required for returning true value

Returns:

a random true with 1/6 probability.

byteBetween

public byte byteBetween(byte min,
                        byte max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random byte between the min and max, exclusive

shortBetween

public short shortBetween(short min,
                          short max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random short between the min and max, exclusive

intBetween

public int intBetween(int min,
                      int max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random int between the min and max, exclusive

longBetween

public long longBetween(long min,
                        long max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random long between the min and max, exclusive

floatBetween

public float floatBetween(float min,
                          float max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random float between the min and max, exclusive

doubleBetween

public double doubleBetween(double min,
                            double max)

Parameters:

min - lower bound

max - upper bound (exclusive)

Returns:

a random double between the min and max, exclusive

character

public char character()

Returns:

random uppercase character between A-Z inclusive.

alphabetic

public String alphabetic(int length)

Parameters:

length - of the string to generate

Returns:

random uppercase String with given length

from

public <T> T from(T[] array)

from

public <T> T from(Collection<T> collection)