/**This class represents a flag. It can be used to check whether the simulation
  *program has finished.
  *@author Yin Xiong
  *@version 1.0(02/2006)
  */

public class Flag
{
  /**Shared by two or more threads.*/
   private int buffer = 0; 

  
  /**Places value into the buffer.
    *@param value int representing the value to be put into the buffer.
    */
   public void set( int value )
   {
      buffer = value;
   } // end method set

  
   /**Returns the value got from buffer.
     */
   public int get()
   {
      return buffer;
   } // end method get

} // end class UnsynchronizedBuffer