Java Utililty Methods TreeSet

List of utility methods to do TreeSet

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Description

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

Method

SetgetTreeSet(final Object o, final Class classElement)
Cast an object into a typed TreeSet . 
final Set<T> set = new TreeSet<>();
set(set, o, classElement);
return set;
doublegetVariance(TreeSet positions)
get Variance 
double average = 0;
int last = 0;
for (Integer position : positions) {
    average += position - last;
    last = position;
average = average / positions.size() - 1;
double var = 0;
...
TreeSetintersection(TreeSet AL1, TreeSet AL2)
intersection 
TreeSet<String> returnTreeSet = new TreeSet<String>();
for (String test : AL1) {
    if (!returnTreeSet.contains(test)) {
        if (AL2.contains(test)) {
            returnTreeSet.add(test);
return returnTreeSet;
doubleminDiff(TreeSet numbers)
min Diff 
double lowestYet = Double.MAX_VALUE;
double last = -Double.MAX_VALUE;
for (Double d : numbers) {
    double diff = d - last;
    if (diff < lowestYet)
        lowestYet = diff;
    last = d;
return lowestYet;
TreeSetnewTreeSet(final Collection c)
new Tree Set 
return new TreeSet<E>(c);
TreeSettoTreeSet(Collection lines)
to Tree Set 
TreeSet<String> tree = new TreeSet<String>();
for (String em : lines) {
    tree.add(em);
return tree;
TreeSettoTreeSet(Collection collection, Comparator comparator)
to Tree Set 
final TreeSet<T> treeSet = new TreeSet<T>(comparator);
for (T t : collection) {
    treeSet.add(t);
return treeSet;
SettreeSet(E... add)
tree Set 
Set<E> result = new TreeSet<>();
if (add != null) {
    result.addAll(Arrays.asList(add));
return result;
SettreeSet(final Collection collection)
Tree set. 
final Set<T> list = new TreeSet<T>();
if (collection != null && collection.size() > 0)
    list.addAll(collection);
return list;
TreeSettreeSet(final T item)
tree Set 
final TreeSet<T> treeSet = new TreeSet<>();
if (null != item) {
    treeSet.add(item);
return treeSet;