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

ListcreateAndInitializeList(int size, int begin)
Creates a mutable list containing size incrementing integer values beginning with begin. 
List<Integer> result = new ArrayList<>(size);
for (int i = begin; i < size + begin; i++)
    result.add(i);
return result;
StringcreateArgumentList(List args)
create Argument List 
if (args == null) {
    return null;
StringBuilder buffer = new StringBuilder();
boolean first = true;
for (String arg : args) {
    if (first) {
        first = false;
...
StringcreateArrayFromUsers(List userList)
create Array From Users 
StringBuilder builder = new StringBuilder();
builder.append(",");
for (String user : userList) {
    builder.append(user);
    builder.append(",");
return builder.toString();
ListcreateArrayList()
Returns a typed array list 
return new ArrayList<T>();
StringcreateBarrier(List text)
Create a barrier to use to distinguish the header from the rest of the output. 
int barrierWidth = 0;
for (String headerLine : text)
    barrierWidth = Math.max(headerLine.length(), barrierWidth);
return String.format("%0" + barrierWidth + "d", 0).replace('0', '-');
MapcreateBlankSet(String date, List titleList)
create Blank Set 
Map result = new HashMap();
try {
    for (int i = 0; i < titleList.size(); i++) {
        String index = (String) titleList.get(i);
        if ("01_SUMDATE".equals(index)) {
            result.put(index, date);
        } else {
            result.put(index, "0");
...
ListcreateBVQueryParametersList()
create BV Query Parameters List 
List<String> queryParameterList = new ArrayList<String>(4);
queryParameterList.add("bvrrp");
queryParameterList.add("bvsyp");
queryParameterList.add("bvqap");
queryParameterList.add("bvpage");
return queryParameterList;
StringcreateCategoryName(List names)
Simple helper method that concatenates the names of a row of categories. 
StringBuilder sb = new StringBuilder();
if (names.size() == 0)
    return "";
sb.append(names.get(0));
for (int i = 1; i < names.size(); i++) {
    sb.append(CATEGORY_SEPARATOR + names.get(i));
return sb.toString();
...
ListcreateChancePrefixList(List chances)
Creates a list with cumulative values the specified chances creating a list of ranges.
Sample:
Item A has 10% chance
Item B has 50% chance
Item C has 40% chance
Result should be a list with values 10, 60, 100.
Generating a random number between 1 and 100 can be used to find which item has been randomly selected.
It's allowed for chances can have sum greater than 100. 
List<Integer> result = new ArrayList<Integer>();
Integer range = 0;
for (Integer chance : chances) {
    range = range + chance;
    result.add(range);
return result;
ArrayListcreateClassList(List objects)
create Class List 
ArrayList<Class> classList = new ArrayList<Class>();
for (Object ob : objects) {
    classList.add(ob.getClass());
return classList;