de.rwth.swc.coffee4j.engine.util

Class ArrayUtil

java.lang.Object

de.rwth.swc.coffee4j.engine.util.ArrayUtil

public final class ArrayUtil
extends Object

Common operations which need to be performed on arrays in combinatorial test input generation.

Method Summary

Modifier and Type	Method and Description
static boolean	contains(int[] elements, int element) Checks whether the given element appears anywhere in the given array.
static int[]	exclude(int[] elements, int[] excludedElements) Calculates an array with the same order and elements as the original, except the excluded ones.

Methods inherited from class java.lang.Object

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

Method Detail

exclude

public static int[] exclude(int[] elements,
                            int[] excludedElements)

Calculates an array with the same order and elements as the original, except the excluded ones. For example, if elements is [0, 5, 3, 2, 5, 2], and excluded elements is [5, 6], then [0, 3, 2, 2] is the result.

Parameters:

elements - all elements. Must not be null

excludedElements - the ones which are be excluded (duplicates don't matter). Most not be null

Returns:

all elements exception the ones which shall be excluded

contains

public static boolean contains(int[] elements,
                               int element)

Checks whether the given element appears anywhere in the given array. If the given array is empty, the element cannot appear in it and therefore null is returned.

Parameters:

elements - all elements which are searched. Must not be null

element - the element for which is searched

Returns:

whether the given element appears in the given elements at any arbitrary index