Class RandomPicks

java.lang.Object

com.carrotsearch.randomizedtesting.generators.RandomPicks

public final class RandomPicks
extends Object

Random selections of objects.

Constructor Summary

Constructors

Constructor	Description
RandomPicks()

Method Summary

Modifier and Type	Method	Description
private static void	checkZeroLength(int length)
static byte	randomFrom(Random r, byte[] array)
static char	randomFrom(Random r, char[] array)
static double	randomFrom(Random r, double[] array)
static float	randomFrom(Random r, float[] array)
static int	randomFrom(Random r, int[] array)
static long	randomFrom(Random r, long[] array)
static short	randomFrom(Random r, short[] array)
static <T> T	randomFrom(Random r, Collection<T> collection)	Pick a random object from the collection.
static <T> T	randomFrom(Random r, List<T> list)	Pick a random object from the given list.
static <T> T	randomFrom(Random r, T[] array)	Pick a random object from the given array.

Methods inherited from class Object

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

Constructor Details

RandomPicks

public RandomPicks()

Method Details

randomFrom

public static byte randomFrom(Random r,
 byte[] array)

randomFrom

public static short randomFrom(Random r,
 short[] array)

randomFrom

public static int randomFrom(Random r,
 int[] array)

randomFrom

public static char randomFrom(Random r,
 char[] array)

randomFrom

public static float randomFrom(Random r,
 float[] array)

randomFrom

public static long randomFrom(Random r,
 long[] array)

randomFrom

public static double randomFrom(Random r,
 double[] array)

checkZeroLength

private static void checkZeroLength(int length)

randomFrom

public static <T> T randomFrom(Random r,
 T[] array)

Pick a random object from the given array.

randomFrom

public static <T> T randomFrom(Random r,
 List<T> list)

Pick a random object from the given list.

randomFrom

public static <T> T randomFrom(Random r,
 Collection<T> collection)

Pick a random object from the collection. Requires linear scanning.