    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017    package org.apache.commons.math3.genetics;
    018
    019    /**
    020     * A pair of {@link Chromosome} objects.
    021     * @since 2.0
    022     *
    023     * @version $Id: ChromosomePair.java 1416643 2012-12-03 19:37:14Z tn $
    024     */
    025    public class ChromosomePair {
    026        /** the first chromosome in the pair. */
    027        private final Chromosome first;
    028
    029        /** the second chromosome in the pair. */
    030        private final Chromosome second;
    031
    032        /**
    033         * Create a chromosome pair.
    034         *
    035         * @param c1 the first chromosome.
    036         * @param c2 the second chromosome.
    037         */
    038        public ChromosomePair(final Chromosome c1, final Chromosome c2) {
    039            super();
    040            first = c1;
    041            second = c2;
    042        }
    043
    044        /**
    045         * Access the first chromosome.
    046         *
    047         * @return the first chromosome.
    048         */
    049        public Chromosome getFirst() {
    050            return first;
    051        }
    052
    053        /**
    054         * Access the second chromosome.
    055         *
    056         * @return the second chromosome.
    057         */
    058        public Chromosome getSecond() {
    059            return second;
    060        }
    061
    062        @Override
    063        public String toString() {
    064            return String.format("(%s,%s)", getFirst(), getSecond());
    065        }
    066    }