How to store values in a servlet without re initializing them each time a servlet is called

I'm making a queue management system. I've hit on stump here. I'm letting the customer/user select their desired service whose token they want to get, but the thing is each time the servlet is called it re-initializes the service-option objects and the token number for that chosen services goes back to 1. How can I store the token count so that it doesn't goes back to 1 again.

public class XmlServlet extends HttpServlet {

protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        String Service_Option = request.getParameter("Service_Option");
        out.println("You selected Service is: "+ Service_Option);

Customer_Console cc1 = new Customer_Console();
Customer_Console cc2 = new Customer_Console();
Customer_Console cc3 = new Customer_Console();

if(Service_Option.equals("Cash Withdrawal"))
{
    cc1.setConsole(1,Service_Option);
    Database_Manager.Insert(cc1);
}
else if(Service_Option.equals("Account Service"))
{
    cc2.setConsole(2,Service_Option);
    Database_Manager.Insert(cc2);
}
else
{
    cc3.setConsole(3,Service_Option);
    Database_Manager.Insert(cc3);
}


}

}

The Console class contains

private int serviceNum;
private String Service_Option;
private Token token;

and the setConsole method is

public void setConsole(int sNum,String sName)
{
    serviceNum = sNum;
    Service_Option = sName;
    token.incrementToken();
}