Java Utililty Methods Array Find

List of utility methods to do Array Find

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Array Find

Description

The list of methods to do Array Find are organized into topic(s).

Method

boolean findAll(int[] arr1, int[] arr2)
find All

for (int a1 : arr1) {
 if (!find(a1, arr2)) {
 return false;
return true;

List findAllArgumentPermutations(Object[][] allArguments)
Permute all possible parameters

return findAllArgumentPermutations(allArguments, 0, 0, new Object[allArguments.length],
 new ArrayList<Object[]>());

List findAllOrientations(int[][] matrix)
find all orientations of any matrix or piece provided

List<int[][]> allPossibleRotations = new ArrayList<>();
allPossibleRotations.add(matrix);
allPossibleRotations.add(flipInPlace(matrix));
allPossibleRotations.add(mirror(matrix[0].length, matrix.length, matrix));
allPossibleRotations.addAll(findAllPossibleRightRotations(allPossibleRotations.get(0)));
allPossibleRotations.addAll(findAllPossibleRightRotations(allPossibleRotations.get(2)));
return allPossibleRotations;

int getIndex(double income, String[] scopes)
get Index

int len = scopes.length;
len++;
double[] vals = new double[len];
vals[0] = income;
for (int i = 1; i < len; i++) {
 vals[i] = Long.parseLong(scopes[i - 1]);
Arrays.sort(vals);
...

int getIndex(String[] array, String value)
get Index

if (array == null)
 throw new RuntimeException("Can't do index. Collection is Null");
for (int i = 0; i < array.length; i++)
 if (array[i].equals(value))
 return i;
return -1;

int getIndexObject(Object[] data, Object object)
Find the index of an element in an array.

int x = new ArrayList<>(Arrays.asList(data)).indexOf(object);
if (x == -1) {
 throw new NoSuchElementException("StringUtils : index lookup in array failed for object " + object
 + ". Data length is " + data.length);
return x;

ArrayList getIndexOf(int i, int[] array)
get Index Of

if (isEmpty(array)) {
 return null;
ArrayList<Integer> result = new ArrayList<Integer>();
for (int index = 0; index < array.length; index++) {
 int num = array[index];
 if (i == num) {
 result.add(index);
...