anchor.diff:  	String state = request.getParameter("state");
   	String message_type = "success";
   	String output = "";
  +	
  +	ArrayList<String> roles = new ArrayList<String>();
  +		roles.add("Owner");
  +		roles.add("Customer");
   	
   	ArrayList<String> states = new ArrayList<String>();
   			states.add("AL");
  
positive.code: 		if(!states.contains(state))
  		{
  			errors++;
  			messages.append(", ").append("This is not a valid state");
  			message_type = "danger";
  		}
  		
  		if(Integer.parseInt(age) < 0)
  		{
  			errors++;
  			messages.append(", ").append("Age must be a positive number");
  			message_type = "danger";
  		}
  		
  
negative.code: 						"WHERE NOT EXISTS (SELECT name FROM users WHERE name = ?);";
  				System.out.print(sql + "\n");		   
  				pstmt = conn.prepareStatement(sql);
  				pstmt.setString(1, name.trim());
  				pstmt.setString(2, role.trim());
  				pstmt.setInt(3, Integer.parseInt(age));
  				pstmt.setString(4, state.trim());
  				pstmt.setString(5, name.trim());
  				
  				//get the count for the number of rows that have been affected by the update 
  				int count = pstmt.executeUpdate();
  