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JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets.

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/*********************************************************************
*
*      Copyright (C) 2006 Andrew Khan
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/

package jxl.common;

/**
 * Simple assertion mechanism for use during development
 */
public final class Assert
{
  /**
   * Throws an AssertionFailed exception if the specified condition is
   * false
   * 
   * @param condition The assertion condition which must be true
   */
  public static void verify(boolean condition)
  {
    if (!condition)
    {
      throw new AssertionFailed();
    }
  }

  /**
   * If the condition evaluates to false, an AssertionFailed is thrown
   * 
   * @param message A message thrown with the failed assertion
   * @param condition If this evaluates to false, an AssertionFailed is thrown
   */
  public static void verify(boolean condition, String message)
  {
    if (!condition)
    {
      throw new AssertionFailed(message);
    }
  }
}