public static String addProcedure() { Procedure A = new Procedure(Procedure.getProcedure(), Procedure.getCost()); p_procList.add(A); String newProcedure = null; for (int i = 0; i < p_procList.size(); i++) { newProcedure = newProcedure + Procedure.getProcedure() + Procedure.getCost(); } return newProcedure; }