Package com.carrotsearch.randomizedtesting.generators

Class RandomPicks

  • public final class RandomPicks
extends java.lang.Object
    Random selections of objects.

    • Constructor Summary

      Constructors 
      Constructor Description
      RandomPicks()  

    • Method Summary

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

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • RandomPicks

        public RandomPicks()

    • Method Detail

      • randomFrom

        public static byte randomFrom​(java.util.Random r,
                              byte[] array)

      • randomFrom

        public static short randomFrom​(java.util.Random r,
                               short[] array)

      • randomFrom

        public static int randomFrom​(java.util.Random r,
                             int[] array)

      • randomFrom

        public static char randomFrom​(java.util.Random r,
                              char[] array)

      • randomFrom

        public static float randomFrom​(java.util.Random r,
                               float[] array)

      • randomFrom

        public static long randomFrom​(java.util.Random r,
                              long[] array)

      • randomFrom

        public static double randomFrom​(java.util.Random r,
                                double[] array)

      • checkZeroLength

        private static void checkZeroLength​(int length)

      • randomFrom

        public static <T> T randomFrom​(java.util.Random r,
                               T[] array)
        Pick a random object from the given array.

      • randomFrom

        public static <T> T randomFrom​(java.util.Random r,
                               java.util.List<T> list)
        Pick a random object from the given list.

      • randomFrom

        public static <T> T randomFrom​(java.util.Random r,
                               java.util.Collection<T> collection)
        Pick a random object from the collection. Requires linear scanning.