ComputerImpl.java

/*
 * Copyright (C) 2012 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.rmi.RemoteException;

/**
 * @author <a href="hoang281283@gmail.com">Minh Hoang TO</a>
 * @date 5/24/12
 */
public class ComputerImpl implements Computer
{
   @Override
   public int rangeProduct(int start, int end) throws RemoteException
   {
      if(start > end)
      {
         throw new IllegalArgumentException("We must have start < end");
      }
      else
      {
         int product = start;
         int factor = start;
         while(++factor <= end)
         {
            product *= factor;
         }
         return product;
      }
   }
}