Source of QueueTest.java


  1: // Fig. 17.14: QueueTest.java
  2: // Class QueueTest.
  3: import com.deitel.jhtp6.ch17.Queue;
  4: import com.deitel.jhtp6.ch17.EmptyListException;
  5: 
  6: public class QueueTest 
  7: {
  8:    public static void main( String args[] )
  9:    {
 10:       Queue queue = new Queue();  
 11: 
 12:       // use enqueue method
 13:       queue.enqueue( -1 );
 14:       queue.print();
 15:       queue.enqueue( 0 );
 16:       queue.print();
 17:       queue.enqueue( 1 );
 18:       queue.print();
 19:       queue.enqueue( 5 );
 20:       queue.print();
 21: 
 22:       // remove objects from queue
 23:       try 
 24:       {
 25:          Object removedObject = null;
 26: 
 27:          while ( true ) 
 28:          {
 29:             removedObject = queue.dequeue(); // use dequeue method
 30:             System.out.printf( "%s dequeued\n", removedObject );
 31:             queue.print();
 32:          } // end while
 33:       } // end try
 34:       catch ( EmptyListException emptyListException ) 
 35:       {
 36:          emptyListException.printStackTrace();
 37:       } // end catch
 38:    } // end main
 39: } // end class QueueTest
 40: 
 41: 
 42: /**************************************************************************
 43:  * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and               *
 44:  * Pearson Education, Inc. All Rights Reserved.                           *
 45:  *                                                                        *
 46:  * DISCLAIMER: The authors and publisher of this book have used their     *
 47:  * best efforts in preparing the book. These efforts include the          *
 48:  * development, research, and testing of the theories and programs        *
 49:  * to determine their effectiveness. The authors and publisher make       *
 50:  * no warranty of any kind, expressed or implied, with regard to these    *
 51:  * programs or to the documentation contained in these books. The authors *
 52:  * and publisher shall not be liable in any event for incidental or       *
 53:  * consequential damages in connection with, or arising out of, the       *
 54:  * furnishing, performance, or use of these programs.                     *
 55:  *************************************************************************/