1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements.  See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License.  You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17package org.apache.commons.math.genetics;
18
19/**
20 * A pair of {@link Chromosome} objects.
21 * @since 2.0
22 *
23 * @version $Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $
24 */
25public class ChromosomePair {
26    /** the first chromosome in the pair. */
27    private final Chromosome first;
28
29    /** the second chromosome in the pair. */
30    private final Chromosome second;
31
32    /**
33     * Create a chromosome pair.
34     *
35     * @param c1 the first chromosome.
36     * @param c2 the second chromosome.
37     */
38    public ChromosomePair(final Chromosome c1, final Chromosome c2) {
39        super();
40        first = c1;
41        second = c2;
42    }
43
44    /**
45     * Access the first chromosome.
46     *
47     * @return the first chromosome.
48     */
49    public Chromosome getFirst() {
50        return first;
51    }
52
53    /**
54     * Access the second chromosome.
55     *
56     * @return the second chromosome.
57     */
58    public Chromosome getSecond() {
59        return second;
60    }
61
62    /**
63     * {@inheritDoc}
64     */
65    @Override
66    public String toString() {
67        return String.format("(%s,%s)", getFirst(), getSecond());
68    }
69}
70