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Tools, utils and helpers: Java tuples.
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/*
 * Copyright 2017 Vitaliy Berdinskikh
 *
 * 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 ua.co.gravy.tuplets;


import java.util.Arrays;
import java.util.List;
import java.util.stream.Stream;


/**
 * Group of six.
 *
 * @param  type of first element
 * @param  type of second element
 * @param  type of third element
 * @param  type of fourth element
 * @param  type of fifth element
 * @param  type of sixth element
 */
public final class Sextuplet extends AbstractTuplet {

	private static final int ARITY = 6;

	private final S first;
	private final D second;
	private final T third;
	private final A fourth;
	private final I fifth;
	private final X sixth;


	public Sextuplet(S first, D second, T third, A fourth, I fifth, X sixth) {
		this.first = first;
		this.second = second;
		this.third = third;
		this.fourth = fourth;
		this.fifth = fifth;
		this.sixth = sixth;
	}


	/**
	 * Get first element.
	 *
	 * @return first element
	 */
	public S first() {
		return first;
	}


	/**
	 * Get second element.
	 *
	 * @return second element
	 */
	public D second() {
		return second;
	}


	/**
	 * Get third element.
	 *
	 * @return third element
	 */
	public T third() {
		return third;
	}


	/**
	 * Get fourth element.
	 *
	 * @return fourth element
	 */
	public A fourth() {
		return fourth;
	}


	/**
	 * Get fifth element.
	 *
	 * @return fifth element
	 */
	public I fifth() {
		return fifth;
	}


	/**
	 * Get sixth element.
	 *
	 * @return sixth element
	 */
	public X sixth() {
		return sixth;
	}


	@Override
	public Object get(int index) throws IndexOutOfBoundsException {
		Object result;

		switch (index) {
			case 0:
				result = first;
				break;
			case 1:
				result = second;
				break;
			case 2:
				result = third;
				break;
			case 3:
				result = fourth;
				break;
			case 4:
				result = fifth;
				break;
			case 5:
				result = sixth;
				break;
			default:
				throw new IndexOutOfBoundsException("Index " + index + " is out of bounds of sextuplet!");
		}

		return result;
	}


	@Override
	public int length() {
		return ARITY;
	}


	@Override
	public Stream