cn.sliew.milky.common.util

类 ArrayUtil

java.lang.Object

cn.sliew.milky.common.util.ArrayUtil

public class ArrayUtil
extends Object

字段概要

字段

限定符和类型	字段和说明
static int	MAX_ARRAY_LENGTH Maximum length for an array (Integer.MAX_VALUE - RamUsageEstimator.NUM_BYTES_ARRAY_HEADER).

方法概要

限定符和类型	方法和说明
static int	oversize(int minTargetSize, int bytesPerElement) Returns an array size >= minTargetSize, generally over-allocating exponentially to achieve amortized linear-time cost as the array grows.

从类继承的方法 java.lang.Object

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

字段详细资料

MAX_ARRAY_LENGTH

public static final int MAX_ARRAY_LENGTH

Maximum length for an array (Integer.MAX_VALUE - RamUsageEstimator.NUM_BYTES_ARRAY_HEADER).

方法详细资料

oversize

public static int oversize(int minTargetSize,
                           int bytesPerElement)

Returns an array size >= minTargetSize, generally over-allocating exponentially to achieve amortized linear-time cost as the array grows.

NOTE: this was originally borrowed from Python 2.4.2 listobject.c sources (attribution in LICENSE.txt), but has now been substantially changed based on discussions from java-dev thread with subject "Dynamic array reallocation algorithms", started on Jan 12 2010.

参数:

minTargetSize - Minimum required value to be returned.

bytesPerElement - Bytes used by each element of the array. See constants in RamUsageEstimator.