oop/11-point-of-sale/src/main/java/lk/ac/pdn/ceit/pos/BillManager.java


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package lk.ac.pdn.ceit.pos;

import lk.ac.pdn.ceit.pos.entities.Bill;

public interface BillManager {
    public Bill createNewBill();

    /**
     * End the current bill.
     */
    public void saveBill();

    public void addLineItem(String itemId, int quantity);

    public void finishBillSession();
}