it.riccardotraverso.java.util

Class ListUtils

java.lang.Object

it.riccardotraverso.java.util.ListUtils

public class ListUtils
extends java.lang.Object

Method Summary

Methods

Modifier and Type	Method and Description
static java.util.List<java.lang.Integer>	pickNDistinctRandom(int min, int max) Creates a shuffled list where each and every number in the range between min and max appear exactly once.
static java.util.List<java.lang.Integer>	pickNDistinctRandom(int min, int max, int count) Picks count distinct random numbers in the range between min and max, included.
static <T> void	reverse(java.util.List<T> src, java.util.List<T> dst) It copies list src onto dst in reversed order, eventually clearing the destination list dst beforehand.

Methods inherited from class java.lang.Object

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

Method Detail

reverse

public static <T> void reverse(java.util.List<T> src,
               java.util.List<T> dst)

It copies list src onto dst in reversed order, eventually clearing the destination list dst beforehand.

Parameters:

src -

dst -

pickNDistinctRandom

public static java.util.List<java.lang.Integer> pickNDistinctRandom(int min,
                                                    int max)

Creates a shuffled list where each and every number in the range between min and max appear exactly once.

Parameters:

min -

max -

pickNDistinctRandom

public static java.util.List<java.lang.Integer> pickNDistinctRandom(int min,
                                                    int max,
                                                    int count)

Picks count distinct random numbers in the range between min and max, included.

Parameters:

min -

max -

count -