Java Utililty Methods Array Element Get

List of utility methods to do Array Element Get

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Description

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

Method

String[]getArgsOption(String[] args, String option)
To get values for an given option from command line arguments. 
if (args == null || args.length <= 0) {
    return null;
String optionChar = "-";
String optionString = optionChar + option;
ArrayList<String> values = new ArrayList<String>();
int currentArgsIndex = -1;
int totalArgs = args.length;
...
Object[]getArrayNoNull(Object[] array)
get Array No Null 
if (array != null && array.length > 0) {
    List<Object> result = new ArrayList<>();
    for (Object obj : array) {
        if (!isNull(obj))
            result.add(obj);
    return result.toArray();
return null;
StringgetArrayPreview(final Object[] array, final int previewSize)
Generates a string that enumerates just the first elements of an array (a preview). 
return getCollectionPreview(Arrays.asList(array), previewSize);
byte[][]getArrays(byte[] inputArray, int arraySize, boolean zeroPad)
Convert a large byte array into multiple smaller byte arrays, with the output size determined by the caller 
byte[][] tdba = new byte[(int) Math.ceil(inputArray.length / (double) arraySize)][arraySize];
int start = 0;
for (int i = 0; i < tdba.length; i++) {
    if (start + arraySize > inputArray.length) {
        byte[] lastArray;
        if (zeroPad) {
            lastArray = new byte[arraySize];
            Arrays.fill(lastArray, (byte) 0x00);
...
T[]getArraySubset(T[] array, int start, int end)
get Array Subset 
return Arrays.copyOfRange(array, start, end);
intgetFrequentElement(int[] bcp)
get Frequent Element 
HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
ArrayList<Integer> count = new ArrayList<Integer>();
ArrayList<Integer> uniId = new ArrayList<Integer>();
int id = 0;
for (int col = 0; col < bcp.length; col++) {
    int no = 0;
    if (!map.containsKey(bcp[col])) {
        map.put(bcp[col], id++);
...
intgetFrequentElement(int[] bcp)
get Frequent Element 
HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
ArrayList<Integer> count = new ArrayList<Integer>();
ArrayList<Integer> uniId = new ArrayList<Integer>();
int id = 0;
for (int col = 0; col < bcp.length; col++) {
    int no = 0;
    if (!map.containsKey(bcp[col])) {
        map.put(bcp[col], id++);
...
T[]getItems(T[] items, int[] indices)
get Items 
T[] result = Arrays.copyOf(items, indices.length);
for (int i = 0; i < indices.length; i++)
    result[i] = items[indices[i]];
return result;
Tgetlast(final T[] array)
getlast 
return array == null || array.length == 0 ? null : array[array.length - 1];
TgetLast(T[] l)
get Last 
return get(l, -1);