Java Utililty Methods List Create

List of utility methods to do List Create

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Description

The list of methods to do List Create are organized into topic(s).

Method

ListasList(T... a)
as List 
if (a == null || a.length == 0) {
    return new ArrayList<T>();
return Arrays.asList(a);
ListasList(T... array)
as List 
if (array == null) {
    return null;
List<T> list = new ArrayList<T>(array.length);
for (T t : array) {
    list.add(t);
return list;
...
ListasList(T... elements)
as List 
List<T> toReturn = new ArrayList<>();
toReturn.addAll(Arrays.asList(elements));
return toReturn;
ListasList(T... items)
as List 
return Arrays.asList(items);
ListasList(T... objs)
Return list literals as list and return array as list; also handle null array. 
return objs != null ? Arrays.asList(objs) : new ArrayList<T>();
ListasList(T[] array)
as List 
List<T> list = new ArrayList<>();
for (T value : array) {
    list.add(value);
return list;
ListasListBox(double[] a)
as List Box 
List<Double> list = new ArrayList<Double>();
for (int i = 0; i < a.length; i++)
    list.add(a[i]);
return list;
ListasListNoNulls(T... array)
as List No Nulls 
ArrayList<T> result = new ArrayList<T>();
for (T t : array) {
    if (t != null) {
        result.add(t);
return result;
List>create2DHorizontalIndexList(final int n)
create D Horizontal Index List 
List<List<Integer>> result = new ArrayList<List<Integer>>();
result.add(new ArrayList<Integer>());
for (int i = 0; i < n; i++) {
    result.get(0).add(i);
return result;
ArrayListcreateActMask(ArrayList stateActions, ArrayList beliefActions)
create Act Mask 
ArrayList<Double> mask = new ArrayList<>(beliefActions.size());
for (int i = 0; i < beliefActions.size(); i++) {
    mask.add(0.0);
    int[] action = beliefActions.get(i);
    for (int[] act : stateActions) {
        if (Arrays.equals(act, action)) {
            mask.set(i, 1.0);
            break;
...