@Test(expected=BadPostfixException.class)
		public void evaluatePostfix2() throws DAIndexOutOfBoundsException, DAIllegalArgumentException, NumberFormatException, NotEnoughOperandsException, BadPostfixException
		{
			try 
			{
				postfix.addLast("5");
				String result = calc.evaluatePostfix(postfix);
			} 
			catch (DAIndexOutOfBoundsException e) 
			{
				throw new DAIndexOutOfBoundsException();
			} 
			catch (DAIllegalArgumentException e) 
			{
				throw new DAIllegalArgumentException();
			}
			catch (NumberFormatException e) 
			{
				throw new NumberFormatException();
			}
			catch (NotEnoughOperandsException e) 
			{
				throw new NotEnoughOperandsException();
			}
			catch (BadPostfixException e) 
			{
				throw new BadPostfixException();
			}
		}