hera.util

Class ArrayUtils

java.lang.Object

hera.util.ArrayUtils

public class ArrayUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ArrayUtils()

Method Summary

Modifier and Type	Method and Description
static byte[]	concat(byte[] left, byte[] right) Concat two byte array.
static <T> boolean	isEmpty(T[] arrays) Check if array is empty.
static <T> int	length(T[] arrays) Return array's length.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtils

public ArrayUtils()

Method Detail

isEmpty

public static <T> boolean isEmpty(T[] arrays)

Check if array is empty.

return false unless array's length is 0

Type Parameters:

T - array element's type

Parameters:

arrays - array to check

Returns:

check result

length

public static <T> int length(T[] arrays)

Return array's length.

return 0 if array is null

Type Parameters:

T - array element's type

Parameters:

arrays - array to check

Returns:

array's length

concat

public static byte[] concat(byte[] left,
                            byte[] right)

Concat two byte array.

Parameters:

left - left array

right - right array

Returns:

a concated array