Java Utililty Methods Array Index Of

List of utility methods to do Array Index Of

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Description

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

Method

intindexOf(byte[] array, byte[] target, int start)
origin: https://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/primitives/Bytes.java Returns the start position of the first occurrence of the specified target within array , or -1 if there is no such occurrence. 
checkNotNull(array, "array");
checkNotNull(target, "target");
if (target.length == 0) {
    return 0;
outer: for (int i = start; i < array.length - target.length + 1; i++) {
    for (int j = 0; j < target.length; j++) {
        if (array[i + j] != target[j]) {
...
intindexOf(byte[] target, byte[] key)
index Of 
return indexOf(target, key, 0);
intindexOf(char toBeFound, char[] array)
index Of 
for (int i = 0; i < array.length; i++) {
    if (toBeFound == array[i])
        return i;
return -1;
intindexOf(final String[] p_elements, final String p_key)
index Of 
if (p_elements == null) {
    return -1;
return Arrays.asList(p_elements).indexOf(p_key);
intindexOf(final T[] array, final T value)
index Of 
final int alen = array.length;
for (int i = 0; i < alen; i++) {
    if (value.equals(array[i])) {
        return i;
return INDEX_NOT_FOUND;
intindexOf(int[] arr, int e)
index Of 
for (int i = 0; i < arr.length; i++) {
    if (arr[i] == e) {
        return i;
return -1;
intindexOf(int[] arr, int val)
index Of 
if (arr == null)
    return -1;
for (int i = 0; i < arr.length; i++)
    if (arr[i] == val)
        return i;
return -1;
intindexOf(Object[] array, Object objectToFind)

Finds the index of the given object in the array.

This method returns #INDEX_NOT_FOUND (-1) for a null input array.

return indexOf(array, objectToFind, 0);
intindexOf(Object[] array, Object objectToFind)

Finds the index of the given object in the array.

This method returns #INDEX_NOT_FOUND ( -1 ) for a null input array.

return indexOf(array, objectToFind, 0);
intindexOf(Object[] elements, Object value)
Returns the index of the first occurrence of the specified element in this array, or -1 if this list does not contain the element. 
int index = 0;
for (Object element : elements) {
    if (equals(element, value)) {
        return index;
    ++index;
return -1;
...