maspack.util

Class ArraySupport

java.lang.Object

maspack.util.ArraySupport

public class ArraySupport
extends java.lang.Object

A set of static methods to test for equality of arrays

Constructor Summary

Constructors

Constructor and Description
ArraySupport()

Method Summary

Modifier and Type	Method and Description
static java.lang.String[]	concat(java.lang.String[] a1, java.lang.String[] a2)
static boolean[]	copy(boolean[] a1)
static byte[]	copy(byte[] a1)
static char[]	copy(char[] a1)
static double[]	copy(double[] a1)
static float[]	copy(float[] a1)
static int[]	copy(int[] a1)
static long[]	copy(long[] a1)
static short[]	copy(short[] a1)
static java.lang.Object[]	copyByReference(java.lang.Object[] a1)
static java.lang.String[]	copyByReference(java.lang.String[] a1)
static java.lang.String[]	copyByValue(java.lang.String[] a1)
static boolean	equals(boolean[] a1, boolean[] a2)
static boolean	equals(boolean[] a1, boolean[] a2, int size)
static boolean	equals(byte[] a1, byte[] a2)
static boolean	equals(byte[] a1, byte[] a2, int size)
static boolean	equals(char[] a1, char[] a2)
static boolean	equals(char[] a1, char[] a2, int size)
static boolean	equals(double[] a1, double[] a2)
static boolean	equals(double[] a1, double[] a2, int size)
static boolean	equals(float[] a1, float[] a2)
static boolean	equals(float[] a1, float[] a2, int size)
static boolean	equals(int[] a1, int[] a2)
static boolean	equals(int[] a1, int[] a2, int size)
static boolean	equals(long[] a1, long[] a2)
static boolean	equals(long[] a1, long[] a2, int size)
static boolean	equals(java.lang.Object[] a1, java.lang.Object[] a2)
static boolean	equals(java.lang.Object[] a1, java.lang.Object[] a2, int size)
static boolean	equals(short[] a1, short[] a2)
static boolean	equals(short[] a1, short[] a2, int size)
static boolean	equals(java.lang.String[] a1, java.lang.String[] a2)
static boolean	equals(java.lang.String[] a1, java.lang.String[] a2, int size)
static void	print(java.lang.String name, boolean[] a1)
static void	print(java.lang.String name, int[] a1)
static <T> void	removeListItems(java.util.ArrayList<T> list, int[] idxs) Removes a set of items from an ArrayList in a way that tries to minimize the amount of data that is moved around within the list.
static int[]	sortIndexList(int[] idxs, int maxi) Checks that the elements of a list of indices are all < maxi and are in strictly ascending order.
static double[]	toDoubleArray(java.util.Collection<? extends java.lang.Number> col)
static float[]	toFloatArray(java.util.Collection<? extends java.lang.Number> col)
static int[]	toIntArray(java.util.Collection<? extends java.lang.Number> col)
static java.lang.String	toString(double[] a1)
static java.lang.String	toString(float[] a1)
static java.lang.String	toString(int[] a1)
static java.lang.String	toString(long[] a1)
static java.lang.String	toString(NumberFormat fmt, double[] a1)
static java.lang.String	toString(NumberFormat fmt, float[] a1)

Methods inherited from class java.lang.Object

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

Constructor Detail

ArraySupport

public ArraySupport()

Method Detail

concat

public static java.lang.String[] concat(java.lang.String[] a1,
                                        java.lang.String[] a2)

equals

public static boolean equals(double[] a1,
                             double[] a2)

equals

public static boolean equals(double[] a1,
                             double[] a2,
                             int size)

equals

public static boolean equals(float[] a1,
                             float[] a2)

equals

public static boolean equals(float[] a1,
                             float[] a2,
                             int size)

equals

public static boolean equals(char[] a1,
                             char[] a2)

equals

public static boolean equals(char[] a1,
                             char[] a2,
                             int size)

equals

public static boolean equals(byte[] a1,
                             byte[] a2)

equals

public static boolean equals(byte[] a1,
                             byte[] a2,
                             int size)

equals

public static boolean equals(short[] a1,
                             short[] a2)

equals

public static boolean equals(short[] a1,
                             short[] a2,
                             int size)

equals

public static boolean equals(int[] a1,
                             int[] a2)

equals

public static boolean equals(int[] a1,
                             int[] a2,
                             int size)

equals

public static boolean equals(long[] a1,
                             long[] a2)

equals

public static boolean equals(long[] a1,
                             long[] a2,
                             int size)

equals

public static boolean equals(boolean[] a1,
                             boolean[] a2)

equals

public static boolean equals(boolean[] a1,
                             boolean[] a2,
                             int size)

equals

public static boolean equals(java.lang.String[] a1,
                             java.lang.String[] a2)

equals

public static boolean equals(java.lang.String[] a1,
                             java.lang.String[] a2,
                             int size)

equals

public static boolean equals(java.lang.Object[] a1,
                             java.lang.Object[] a2)

equals

public static boolean equals(java.lang.Object[] a1,
                             java.lang.Object[] a2,
                             int size)

copy

public static double[] copy(double[] a1)

copy

public static float[] copy(float[] a1)

copy

public static char[] copy(char[] a1)

copy

public static byte[] copy(byte[] a1)

copy

public static short[] copy(short[] a1)

copy

public static int[] copy(int[] a1)

copy

public static long[] copy(long[] a1)

copy

public static boolean[] copy(boolean[] a1)

copyByReference

public static java.lang.String[] copyByReference(java.lang.String[] a1)

copyByValue

public static java.lang.String[] copyByValue(java.lang.String[] a1)

copyByReference

public static java.lang.Object[] copyByReference(java.lang.Object[] a1)

toDoubleArray

public static double[] toDoubleArray(java.util.Collection<? extends java.lang.Number> col)

toFloatArray

public static float[] toFloatArray(java.util.Collection<? extends java.lang.Number> col)

toIntArray

public static int[] toIntArray(java.util.Collection<? extends java.lang.Number> col)

print

public static void print(java.lang.String name,
                         int[] a1)

print

public static void print(java.lang.String name,
                         boolean[] a1)

toString

public static java.lang.String toString(int[] a1)

toString

public static java.lang.String toString(long[] a1)

toString

public static java.lang.String toString(NumberFormat fmt,
                                        double[] a1)

toString

public static java.lang.String toString(double[] a1)

toString

public static java.lang.String toString(NumberFormat fmt,
                                        float[] a1)

toString

public static java.lang.String toString(float[] a1)

sortIndexList

public static int[] sortIndexList(int[] idxs,
                                  int maxi)

Checks that the elements of a list of indices are all < maxi and are in strictly ascending order. If they are not in ascending order, a new list is created and sorted to ensure that they are.

Parameters:

idxs - original index list

Returns:

sorted index list, which will be the same idxs if sorting was not required.

removeListItems

public static <T> void removeListItems(java.util.ArrayList<T> list,
                                       int[] idxs)

Removes a set of items from an ArrayList in a way that tries to minimize the amount of data that is moved around within the list. The items are specified by an array of indices idxs. Indices can be in any order, but better performance is achieved if they are arranged in ascending order.

Parameters:

list - ArrayList from which items are to be removed

idxs - indices of the items which should be removed