org.spf4j.base

Class Arrays

java.lang.Object

org.spf4j.base.Arrays

public final class Arrays
extends Object

Array utilities.

Author:

zoly

Field Summary

Fields

Modifier and Type	Field and Description
static Object[]	EMPTY_OBJ_ARRAY

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T[]	concat(T[]... arrays)
static boolean	deepEquals(Object[] a1, Object[] a2, int starting)
static boolean	deepEquals(Object[] a1, Object[] a2, int starting, int ending)
static double[]	divide(double[] arr1, double[] arr2)
static double[]	getColumn(double[][] data, int columnNumber)
static double[]	getColumnAsDoubles(long[][] data, int columnNumber)
static <T> T[]	moveOfRange(T[] original, int from, int to)
static int	search(char[] array, char c)
static double[]	toDoubleArray(long... larr)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_OBJ_ARRAY

public static final Object[] EMPTY_OBJ_ARRAY

Method Detail

getColumnAsDoubles

public static double[] getColumnAsDoubles(long[][] data,
                          int columnNumber)

getColumn

public static double[] getColumn(double[][] data,
                 int columnNumber)

toDoubleArray

public static double[] toDoubleArray(long... larr)

divide

public static double[] divide(double[] arr1,
              double[] arr2)

deepEquals

public static boolean deepEquals(Object[] a1,
                 Object[] a2,
                 int starting)

deepEquals

public static boolean deepEquals(Object[] a1,
                 Object[] a2,
                 int starting,
                 int ending)

search

public static int search(char[] array,
         char c)

moveOfRange

public static <T> T[] moveOfRange(T[] original,
                  int from,
                  int to)

concat

public static <T> T[] concat(T[]... arrays)