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

StringcreateMultiParamMessage(String aPrefix, String aSuffix, List aParams)
create Multi Param Message 
StringBuilder tLogTextBuilder = new StringBuilder();
tLogTextBuilder.append(aPrefix);
for (Object tCurrentParam : aParams) {
    tLogTextBuilder.append("\"");
    tLogTextBuilder.append(tCurrentParam.toString());
    tLogTextBuilder.append("\" ");
tLogTextBuilder.append(aSuffix);
...
StringcreateMultiSelectionValue(List values)
create Multi Selection Value 
Collections.sort(values);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < values.size(); i++) {
    if (i > 0) {
        sb.append(' ');
    sb.append("\"" + values.get(i) + "\"");
return sb.toString();
ListcreateMutableList(Collection collection)
create Mutable List 
List<E> mutableList = new ArrayList<>();
if (isNotEmpty(collection)) {
    for (E data : collection) {
        mutableList.add(data);
return mutableList;
ListcreateNewList(Class type)
create New List 
if (type == List.class) {
    return new ArrayList();
} else if (type.isInterface()) {
    throw new RuntimeException("Can't instantiate a list type: " + type);
try {
    return (List) type.newInstance();
} catch (Exception e) {
...
voidcreateNormalDistributionByBootstrapping(List values1, List values2, final List sums1, final List sums2)
Creates normal distribution by bootstrapping the given samples. 
if (values1.size() < 3 * NUM_ITEMS_IN_SUM || values2.size() < 3 * NUM_ITEMS_IN_SUM) {
    throw new RuntimeException(
            "Cannot conduct t-test on non normally distributed sample sets. Not enough data points!");
double sum = 0;
int counter = 0;
for (Number num : values1) {
    if (counter % NUM_ITEMS_IN_SUM == 0 && counter != 0) {
...
ListcreateNormativeTroopAllocation(List probs)
Creates a troop allocation where 100% of troops are allocated against the group or location with the highest probability. 
if (probs != null && !probs.isEmpty()) {
    ArrayList<Integer> I = new ArrayList<Integer>(probs.size());
    int maxProb = Integer.MIN_VALUE;
    int maxProbIndex = 0;
    int i = 0;
    for (Integer prob : probs) {
        if (prob > maxProb) {
            maxProb = prob;
...
ListcreateNullElementList(int size)
create Null Element List 
List lst = new ArrayList(size);
for (int i = lst.size(); i < size; i++) {
    lst.add(null);
return lst;
ListcreateNullList(int numberOfElements)
Create a List of the specified size filled with null, in order to be able to use set() to set elements in arbitrary order. 
List<T> list = new ArrayList<T>(numberOfElements);
for (int j = 0; j < numberOfElements; j++) {
    list.add(null);
return list;
ArrayListCreateObjectList(Object... values)
Creates a list of objects from an array of objects. 
ArrayList results = new ArrayList();
Collections.addAll(results, values);
return results;
ListcreateOneElementList(T element)
creates an array list with the one given element. 
List<T> list = new ArrayList<T>();
list.add(element);
return list;