/*
 * Copyright (c) 2011-2014 Fernando Petrola
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package java.util;

public class TreeSet<E> extends HashSet<E> implements SortedSet<E>
{
	public TreeSet(Collection<?> source)
	{
		// TODO Auto-generated constructor stub
	}

	public TreeSet()
	{
		// TODO Auto-generated constructor stub
	}

	@Override
	public Comparator comparator()
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public E first()
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public E last()
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public SortedSet<E> subSet(E fromElement, E toElement)
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public SortedSet<E> headSet(E toElement)
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public SortedSet<E> tailSet(E fromElement)
	{
		// TODO Auto-generated method stub
		return null;
	}
}