com.graphhopper.util

Class ArrayUtil

java.lang.Object

com.graphhopper.util.ArrayUtil

public class ArrayUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
ArrayUtil()

Method Summary

Modifier and Type	Method and Description
static com.carrotsearch.hppc.IntArrayList	constant(int size, int value) Creates an IntArrayList of a given size where each element is set to the given value
static com.carrotsearch.hppc.IntArrayList	iota(int size) Creates an IntArrayList filled with the integers 0,1,2,3,...,size-1
static com.carrotsearch.hppc.IntArrayList	permutation(int size, Random rnd) Creates an IntArrayList filled with a permutation of the numbers 0,1,2,...,size-1
static com.carrotsearch.hppc.IntIndexedContainer	removeConsecutiveDuplicates(com.carrotsearch.hppc.IntIndexedContainer arr) Creates a copy of the given list where all consecutive duplicates are removed
static com.carrotsearch.hppc.IntArrayList	reverse(com.carrotsearch.hppc.IntArrayList list) Reverses the order of the given list's elements in place and returns it
static com.carrotsearch.hppc.IntArrayList	shuffle(com.carrotsearch.hppc.IntArrayList list, Random random) Shuffles the elements of the given list in place and returns it

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

constant

public static com.carrotsearch.hppc.IntArrayList constant(int size,
                                                          int value)

Creates an IntArrayList of a given size where each element is set to the given value

iota

public static com.carrotsearch.hppc.IntArrayList iota(int size)

Creates an IntArrayList filled with the integers 0,1,2,3,...,size-1

permutation

public static com.carrotsearch.hppc.IntArrayList permutation(int size,
                                                             Random rnd)

Creates an IntArrayList filled with a permutation of the numbers 0,1,2,...,size-1

reverse

public static com.carrotsearch.hppc.IntArrayList reverse(com.carrotsearch.hppc.IntArrayList list)

Reverses the order of the given list's elements in place and returns it

shuffle

public static com.carrotsearch.hppc.IntArrayList shuffle(com.carrotsearch.hppc.IntArrayList list,
                                                         Random random)

Shuffles the elements of the given list in place and returns it

removeConsecutiveDuplicates

public static com.carrotsearch.hppc.IntIndexedContainer removeConsecutiveDuplicates(com.carrotsearch.hppc.IntIndexedContainer arr)

Creates a copy of the given list where all consecutive duplicates are removed