Java Utililty Methods List from

List of utility methods to do List from

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Description

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

Method

StringlistOf(String type)
list Of 
return "java.util.List<" + type + ">";
ListlistOf(T value, int size)
list Of 
List<T> list = new ArrayList<T>(size);
list.add(value);
return list;
ArrayListlistOf(T... args)
list Of 
ArrayList<T> result = new ArrayList<T>();
for (T t : args)
    result.add(t);
return result;
ListlistOf(T... elements)
list Of 
List<T> list = new ArrayList<>();
for (T element : elements) {
    list.add(element);
return list;
ListlistOf(T... elems)
Returns the list of elements given as parameters. 
return java.util.Arrays.asList(elems);
ListlistOf(T... values)
list Of 
return unmodifiableList(Arrays.asList(values));
ListlistOfArrays(T[]... values)
Simple wrapper for Arrays.asList() 
return new ArrayList<T[]>(Arrays.asList(values));
StringlistOfExceptionsAsString(List exs)
Lists exceptions using their toString(), one per line. 
StringBuilder sb = new StringBuilder();
for (Exception ex : exs) {
    sb.append(ex.toString()).append("\n");
return sb.toString();
int[]listOfIntegers2ArrayOfInts(List xs)
list Of Integers Array Of Ints 
int[] xa = new int[xs.size()];
for (int i = 0; i < xa.length; ++i) {
    xa[i] = xs.get(i);
return xa;
StringlistOfItems(List items, String separator, String finalConjunction)
Return a string that is a list of items separated by separator and using the final conjunction. 
final int size = items.size();
if (size < 1)
    return "";
switch (size) {
case 1:
    return items.iterator().next();
case 2:
    return items.get(0) + " " + finalConjunction + " " + items.get(1);
...