org.incava.ijdk.lang

Class IntArray

java.lang.Object

org.incava.ijdk.lang.IntegerArray

org.incava.ijdk.lang.IntArray

public class IntArray
extends IntegerArray

Utilities for int[].

Constructor Summary

Constructors

Constructor and Description
IntArray()

Method Summary

Modifier and Type	Method and Description
static int	average(int[] ary) Returns the average of the elements in array, or 0 if null or the number of elements is zero.
static boolean	contains(int[] ary, int value) Returns whether the given value equals any element in the array.
int	getInt(int index)
int	getInt(int index, int defValue)
static int	length(int[] ary) Returns the number of elements in the array, or 0 if null.
static int	max(int[] ary) Returns the maximum in the array, or Integer.MIN_VALUE if null.
static int	min(int[] ary) Returns the minimum in the array, or Integer.MAX_VALUE if null.
static int	sum(int[] ary) Returns the sum (total) of array, or 0 if null.
static java.lang.String[]	toStringArray(int[] ary) Returns an array of strings for the given int array, or an zero-length string array if the int array is null or empty.

Methods inherited from class org.incava.ijdk.lang.IntegerArray

add, get, lastIndex, lastKey, lastValue, remove, set, size, toArray, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IntArray

public IntArray()

Method Detail

getInt

public int getInt(int index,
                  int defValue)

getInt

public int getInt(int index)

toStringArray

public static java.lang.String[] toStringArray(int[] ary)

Returns an array of strings for the given int array, or an zero-length string array if the int array is null or empty.

Parameters:

ary - the array to convert

Returns:

an array of zero length or more, the int array converted to strings

contains

public static boolean contains(int[] ary,
                               int value)

Returns whether the given value equals any element in the array.

Parameters:

ary - the array to search

value - the value to match an element against

Returns:

whether an element matched value

max

public static int max(int[] ary)

Returns the maximum in the array, or Integer.MIN_VALUE if null.

Parameters:

ary - the array of which to find the maximum

Returns:

the maximum of the array, or Integer.MIN_VALUE if null

min

public static int min(int[] ary)

Returns the minimum in the array, or Integer.MAX_VALUE if null.

Parameters:

ary - the array of which to find the minimum

Returns:

the minimum of the array, or Integer.MAX_VALUE if null

sum

public static int sum(int[] ary)

Returns the sum (total) of array, or 0 if null.

Parameters:

ary - the array to sum

Returns:

the sum of the array, or 0 if null

length

public static int length(int[] ary)

Returns the number of elements in the array, or 0 if null.

Parameters:

ary - the array

Returns:

the length of the array, or 0 if null

average

public static int average(int[] ary)

Returns the average of the elements in array, or 0 if null or the number of elements is zero.

Parameters:

ary - the array of integers to take the average of

Returns:

the average