Reverses the order of the given long type value array. : Array Objects « Collections « Java Tutorial






/* 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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
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 *
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 */


/**
 * @author Stephen Colebourne
 * @author Moritz Petersen
 * @author <a href="mailto:fredrik@westermarck.com">Fredrik Westermarck</a>
 * @author Nikolay Metchev
 * @author Matthew Hawthorne
 * @author Tim O'Brien
 * @author Pete Gieser
 * @author Gary Gregory
 * @author <a href="mailto:equinus100@hotmail.com">Ashwin S</a>
 * @author Maarten Coene
 * @since 2.0
 * @version $Id: ArrayUtils.java 632503 2008-03-01 00:21:52Z ggregory $
 */
public class Main {

  /**
   * Reverses the order of the given array.
   * 
   * This method does nothing for a <code>null</code> input array.
   * 
   * @param array  the array to reverse, may be <code>null</code>
   */
  public static void reverse(long[] array) {
      if (array == null) {
          return;
      }
      int i = 0;
      int j = array.length - 1;
      long tmp;
      while (j > i) {
          tmp = array[j];
          array[j] = array[i];
          array[i] = tmp;
          j--;
          i++;
      }
  }
}








9.6.Array Objects
9.6.1.Arrays of Objects
9.6.2.Arrays of Strings: using 'new' operator
9.6.3.Arrays of Strings: initial values determine the size of the array
9.6.4.Demonstrate String arrays.
9.6.5.Checks whether two arrays are the same length, treating null arrays as length 0.
9.6.6.Checks whether two arrays are the same type taking into account multi-dimensional arrays.
9.6.7.Turn an array of ints into a printable string.
9.6.8.Check if the given object is an array (primitve or native).
9.6.9.Reverses the order of the given long type value array.
9.6.10.Removes the first occurrence of the specified element from the specified array.
9.6.11.Removes the element at the specified position from the specified array.