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<div class="subTitle">edu.emory.mathcs.backport.java.util</div>
<h2 title="Class TreeSet" class="title">Class TreeSet</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>java.util.AbstractCollection</li>
<li>
<ul class="inheritance">
<li>java.util.AbstractSet</li>
<li>
<ul class="inheritance">
<li>edu.emory.mathcs.backport.java.util.TreeSet</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a>, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, java.util.Collection, java.util.Set, java.util.SortedSet</dd>
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<pre>public class <span class="strong">TreeSet</span>
extends java.util.AbstractSet
implements <a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a>, java.lang.Cloneable, java.io.Serializable</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../serialized-form.html#edu.emory.mathcs.backport.java.util.TreeSet">Serialized Form</a></dd></dl>
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#TreeSet()">TreeSet</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#TreeSet(java.util.Collection)">TreeSet</a></strong>(java.util.Collection c)</code> </td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#TreeSet(java.util.Comparator)">TreeSet</a></strong>(java.util.Comparator comparator)</code> </td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#TreeSet(java.util.SortedSet)">TreeSet</a></strong>(java.util.SortedSet s)</code> </td>
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<h3>Method Summary</h3>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#add(java.lang.Object)">add</a></strong>(java.lang.Object o)</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#addAll(java.util.Collection)">addAll</a></strong>(java.util.Collection c)</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#ceiling(java.lang.Object)">ceiling</a></strong>(java.lang.Object e)</code>
<div class="block">Returns the least element in this set greater than or equal to
the given element, or <code>null</code> if there is no such element.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#clear()">clear</a></strong>()</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#clone()">clone</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.Comparator</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#comparator()">comparator</a></strong>()</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#contains(java.lang.Object)">contains</a></strong>(java.lang.Object o)</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.Iterator</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#descendingIterator()">descendingIterator</a></strong>()</code>
<div class="block">Returns an iterator over the elements in this set, in descending order.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#descendingSet()">descendingSet</a></strong>()</code>
<div class="block">Returns a reverse order view of the elements contained in this set.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#first()">first</a></strong>()</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#floor(java.lang.Object)">floor</a></strong>(java.lang.Object e)</code>
<div class="block">Returns the greatest element in this set less than or equal to
the given element, or <code>null</code> if there is no such element.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.SortedSet</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#headSet(java.lang.Object)">headSet</a></strong>(java.lang.Object toElement)</code></td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#headSet(java.lang.Object, boolean)">headSet</a></strong>(java.lang.Object toElement,
boolean toInclusive)</code>
<div class="block">Returns a view of the portion of this set whose elements are less than
(or equal to, if <code>inclusive</code> is true) <code>toElement</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#higher(java.lang.Object)">higher</a></strong>(java.lang.Object e)</code>
<div class="block">Returns the least element in this set strictly greater than the
given element, or <code>null</code> if there is no such element.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#isEmpty()">isEmpty</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.Iterator</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#iterator()">iterator</a></strong>()</code>
<div class="block">Returns an iterator over the elements in this set, in ascending order.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#last()">last</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#lower(java.lang.Object)">lower</a></strong>(java.lang.Object e)</code>
<div class="block">Returns the greatest element in this set strictly less than the
given element, or <code>null</code> if there is no such element.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#pollFirst()">pollFirst</a></strong>()</code>
<div class="block">Retrieves and removes the first (lowest) element,
or returns <code>null</code> if this set is empty.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#pollLast()">pollLast</a></strong>()</code>
<div class="block">Retrieves and removes the last (highest) element,
or returns <code>null</code> if this set is empty.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#remove(java.lang.Object)">remove</a></strong>(java.lang.Object o)</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#size()">size</a></strong>()</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#subSet(java.lang.Object, boolean, java.lang.Object, boolean)">subSet</a></strong>(java.lang.Object fromElement,
boolean fromInclusive,
java.lang.Object toElement,
boolean toInclusive)</code>
<div class="block">Returns a view of the portion of this set whose elements range from
<code>fromElement</code> to <code>toElement</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.SortedSet</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#subSet(java.lang.Object, java.lang.Object)">subSet</a></strong>(java.lang.Object fromElement,
java.lang.Object toElement)</code></td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.SortedSet</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#tailSet(java.lang.Object)">tailSet</a></strong>(java.lang.Object fromElement)</code></td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#tailSet(java.lang.Object, boolean)">tailSet</a></strong>(java.lang.Object fromElement,
boolean fromInclusive)</code>
<div class="block">Returns a view of the portion of this set whose elements are greater
than (or equal to, if <code>inclusive</code> is true) <code>fromElement</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#toArray()">toArray</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Object[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../../edu/emory/mathcs/backport/java/util/TreeSet.html#toArray(java.lang.Object[])">toArray</a></strong>(java.lang.Object[] a)</code> </td>
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<h3>Methods inherited from class java.util.AbstractSet</h3>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Methods inherited from interface java.util.Set</h3>
<code>containsAll, equals, hashCode, removeAll, retainAll</code></li>
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<h4>TreeSet</h4>
<pre>public TreeSet()</pre>
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<h4>TreeSet</h4>
<pre>public TreeSet(java.util.Comparator comparator)</pre>
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<pre>public TreeSet(java.util.Collection c)</pre>
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<pre>public TreeSet(java.util.SortedSet s)</pre>
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<h4>lower</h4>
<pre>public java.lang.Object lower(java.lang.Object e)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#lower(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">Returns the greatest element in this set strictly less than the
given element, or <code>null</code> if there is no such element.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#lower(java.lang.Object)">lower</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - the value to match</dd>
<dt><span class="strong">Returns:</span></dt><dd>the greatest element less than <code>e</code>,
or <code>null</code> if there is no such element</dd></dl>
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<pre>public java.lang.Object floor(java.lang.Object e)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#floor(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">Returns the greatest element in this set less than or equal to
the given element, or <code>null</code> if there is no such element.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#floor(java.lang.Object)">floor</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - the value to match</dd>
<dt><span class="strong">Returns:</span></dt><dd>the greatest element less than or equal to <code>e</code>,
or <code>null</code> if there is no such element</dd></dl>
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<a name="ceiling(java.lang.Object)">
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<h4>ceiling</h4>
<pre>public java.lang.Object ceiling(java.lang.Object e)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#ceiling(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">Returns the least element in this set greater than or equal to
the given element, or <code>null</code> if there is no such element.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#ceiling(java.lang.Object)">ceiling</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - the value to match</dd>
<dt><span class="strong">Returns:</span></dt><dd>the least element greater than or equal to <code>e</code>,
or <code>null</code> if there is no such element</dd></dl>
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<pre>public java.lang.Object higher(java.lang.Object e)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#higher(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">Returns the least element in this set strictly greater than the
given element, or <code>null</code> if there is no such element.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#higher(java.lang.Object)">higher</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - the value to match</dd>
<dt><span class="strong">Returns:</span></dt><dd>the least element greater than <code>e</code>,
or <code>null</code> if there is no such element</dd></dl>
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<pre>public java.lang.Object pollFirst()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#pollFirst()">NavigableSet</a></code></strong></div>
<div class="block">Retrieves and removes the first (lowest) element,
or returns <code>null</code> if this set is empty.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#pollFirst()">pollFirst</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the first element, or <code>null</code> if this set is empty</dd></dl>
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<pre>public java.lang.Object pollLast()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#pollLast()">NavigableSet</a></code></strong></div>
<div class="block">Retrieves and removes the last (highest) element,
or returns <code>null</code> if this set is empty.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#pollLast()">pollLast</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the last element, or <code>null</code> if this set is empty</dd></dl>
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<pre>public java.util.Iterator iterator()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#iterator()">NavigableSet</a></code></strong></div>
<div class="block">Returns an iterator over the elements in this set, in ascending order.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#iterator()">iterator</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>iterator</code> in interface <code>java.lang.Iterable</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>iterator</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>iterator</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>iterator</code> in class <code>java.util.AbstractCollection</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>an iterator over the elements in this set, in ascending order</dd></dl>
</li>
</ul>
<a name="descendingIterator()">
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<pre>public java.util.Iterator descendingIterator()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#descendingIterator()">NavigableSet</a></code></strong></div>
<div class="block">Returns an iterator over the elements in this set, in descending order.
Equivalent in effect to <code>descendingSet().iterator()</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#descendingIterator()">descendingIterator</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>an iterator over the elements in this set, in descending order</dd></dl>
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<a name="subSet(java.lang.Object, java.lang.Object)">
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<h4>subSet</h4>
<pre>public java.util.SortedSet subSet(java.lang.Object fromElement,
java.lang.Object toElement)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#subSet(java.lang.Object, java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">
<p>Equivalent to <code>subSet(fromElement, true, toElement, false)</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#subSet(java.lang.Object, java.lang.Object)">subSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>subSet</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
</li>
</ul>
<a name="headSet(java.lang.Object)">
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<h4>headSet</h4>
<pre>public java.util.SortedSet headSet(java.lang.Object toElement)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#headSet(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">
<p>Equivalent to <code>headSet(toElement, false)</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#headSet(java.lang.Object)">headSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>headSet</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
</li>
</ul>
<a name="tailSet(java.lang.Object)">
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<h4>tailSet</h4>
<pre>public java.util.SortedSet tailSet(java.lang.Object fromElement)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#tailSet(java.lang.Object)">NavigableSet</a></code></strong></div>
<div class="block">
<p>Equivalent to <code>tailSet(fromElement, true)</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#tailSet(java.lang.Object)">tailSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>tailSet</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
</li>
</ul>
<a name="subSet(java.lang.Object, boolean, java.lang.Object, boolean)">
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<h4>subSet</h4>
<pre>public <a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a> subSet(java.lang.Object fromElement,
boolean fromInclusive,
java.lang.Object toElement,
boolean toInclusive)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#subSet(java.lang.Object, boolean, java.lang.Object, boolean)">NavigableSet</a></code></strong></div>
<div class="block">Returns a view of the portion of this set whose elements range from
<code>fromElement</code> to <code>toElement</code>. If <code>fromElement</code> and
<code>toElement</code> are equal, the returned set is empty unless <code>fromExclusive</code> and <code>toExclusive</code> are both true. The returned set
is backed by this set, so changes in the returned set are reflected in
this set, and vice-versa. The returned set supports all optional set
operations that this set supports.
<p>The returned set will throw an <code>IllegalArgumentException</code>
on an attempt to insert an element outside its range.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#subSet(java.lang.Object, boolean, java.lang.Object, boolean)">subSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>fromElement</code> - low endpoint of the returned set</dd><dd><code>fromInclusive</code> - <code>true</code> if the low endpoint
is to be included in the returned view</dd><dd><code>toElement</code> - high endpoint of the returned set</dd><dd><code>toInclusive</code> - <code>true</code> if the high endpoint
is to be included in the returned view</dd>
<dt><span class="strong">Returns:</span></dt><dd>a view of the portion of this set whose elements range from
<code>fromElement</code>, inclusive, to <code>toElement</code>, exclusive</dd></dl>
</li>
</ul>
<a name="headSet(java.lang.Object, boolean)">
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<h4>headSet</h4>
<pre>public <a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a> headSet(java.lang.Object toElement,
boolean toInclusive)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#headSet(java.lang.Object, boolean)">NavigableSet</a></code></strong></div>
<div class="block">Returns a view of the portion of this set whose elements are less than
(or equal to, if <code>inclusive</code> is true) <code>toElement</code>. The
returned set is backed by this set, so changes in the returned set are
reflected in this set, and vice-versa. The returned set supports all
optional set operations that this set supports.
<p>The returned set will throw an <code>IllegalArgumentException</code>
on an attempt to insert an element outside its range.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#headSet(java.lang.Object, boolean)">headSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>toElement</code> - high endpoint of the returned set</dd><dd><code>toInclusive</code> - <code>true</code> if the high endpoint
is to be included in the returned view</dd>
<dt><span class="strong">Returns:</span></dt><dd>a view of the portion of this set whose elements are less than
(or equal to, if <code>inclusive</code> is true) <code>toElement</code></dd></dl>
</li>
</ul>
<a name="tailSet(java.lang.Object, boolean)">
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<h4>tailSet</h4>
<pre>public <a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a> tailSet(java.lang.Object fromElement,
boolean fromInclusive)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#tailSet(java.lang.Object, boolean)">NavigableSet</a></code></strong></div>
<div class="block">Returns a view of the portion of this set whose elements are greater
than (or equal to, if <code>inclusive</code> is true) <code>fromElement</code>.
The returned set is backed by this set, so changes in the returned set
are reflected in this set, and vice-versa. The returned set supports
all optional set operations that this set supports.
<p>The returned set will throw an <code>IllegalArgumentException</code>
on an attempt to insert an element outside its range.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#tailSet(java.lang.Object, boolean)">tailSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>fromElement</code> - low endpoint of the returned set</dd><dd><code>fromInclusive</code> - <code>true</code> if the low endpoint
is to be included in the returned view</dd>
<dt><span class="strong">Returns:</span></dt><dd>a view of the portion of this set whose elements are greater
than or equal to <code>fromElement</code></dd></dl>
</li>
</ul>
<a name="descendingSet()">
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<li class="blockList">
<h4>descendingSet</h4>
<pre>public <a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a> descendingSet()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#descendingSet()">NavigableSet</a></code></strong></div>
<div class="block">Returns a reverse order view of the elements contained in this set.
The descending set is backed by this set, so changes to the set are
reflected in the descending set, and vice-versa. If either set is
modified while an iteration over either set is in progress (except
through the iterator's own <code>remove</code> operation), the results of
the iteration are undefined.
<p>The returned set has an ordering equivalent to
<tt><a href="../../../../../../edu/emory/mathcs/backport/java/util/Collections.html#reverseOrder(java.util.Comparator)"><code>Collections.reverseOrder</code></a>(comparator())</tt>.
The expression <code>s.descendingSet().descendingSet()</code> returns a
view of <code>s</code> essentially equivalent to <code>s</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html#descendingSet()">descendingSet</a></code> in interface <code><a href="../../../../../../edu/emory/mathcs/backport/java/util/NavigableSet.html" title="interface in edu.emory.mathcs.backport.java.util">NavigableSet</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>a reverse order view of this set</dd></dl>
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<h4>comparator</h4>
<pre>public java.util.Comparator comparator()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>comparator</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
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<h4>first</h4>
<pre>public java.lang.Object first()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>first</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
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<a name="last()">
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<h4>last</h4>
<pre>public java.lang.Object last()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>last</code> in interface <code>java.util.SortedSet</code></dd>
</dl>
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<a name="size()">
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<h4>size</h4>
<pre>public int size()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>size</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>size</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>size</code> in class <code>java.util.AbstractCollection</code></dd>
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<h4>isEmpty</h4>
<pre>public boolean isEmpty()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>isEmpty</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>isEmpty</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>isEmpty</code> in class <code>java.util.AbstractCollection</code></dd>
</dl>
</li>
</ul>
<a name="contains(java.lang.Object)">
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<li class="blockList">
<h4>contains</h4>
<pre>public boolean contains(java.lang.Object o)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>contains</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>contains</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>contains</code> in class <code>java.util.AbstractCollection</code></dd>
</dl>
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<a name="toArray()">
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</a>
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<h4>toArray</h4>
<pre>public java.lang.Object[] toArray()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>toArray</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>toArray</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>toArray</code> in class <code>java.util.AbstractCollection</code></dd>
</dl>
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<a name="toArray(java.lang.Object[])">
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<h4>toArray</h4>
<pre>public java.lang.Object[] toArray(java.lang.Object[] a)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>toArray</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>toArray</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>toArray</code> in class <code>java.util.AbstractCollection</code></dd>
</dl>
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</ul>
<a name="add(java.lang.Object)">
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<li class="blockList">
<h4>add</h4>
<pre>public boolean add(java.lang.Object o)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>add</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>add</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>add</code> in class <code>java.util.AbstractCollection</code></dd>
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</ul>
<a name="remove(java.lang.Object)">
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<li class="blockList">
<h4>remove</h4>
<pre>public boolean remove(java.lang.Object o)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code>remove</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>remove</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>remove</code> in class <code>java.util.AbstractCollection</code></dd>
</dl>
</li>
</ul>
<a name="addAll(java.util.Collection)">
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<h4>addAll</h4>
<pre>public boolean addAll(java.util.Collection c)</pre>
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<dt><strong>Specified by:</strong></dt>
<dd><code>addAll</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>addAll</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>addAll</code> in class <code>java.util.AbstractCollection</code></dd>
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<h4>clear</h4>
<pre>public void clear()</pre>
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<dt><strong>Specified by:</strong></dt>
<dd><code>clear</code> in interface <code>java.util.Collection</code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code>clear</code> in interface <code>java.util.Set</code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code>clear</code> in class <code>java.util.AbstractCollection</code></dd>
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<h4>clone</h4>
<pre>public java.lang.Object clone()</pre>
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<dt><strong>Overrides:</strong></dt>
<dd><code>clone</code> in class <code>java.lang.Object</code></dd>
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