InstorePurchase.java

public class InStorePurchase extends PurchaseProcessTemplate {
  
    @Override
    public void doSelectItems() {
        System.out.println("Customer selects items from the rack.");
    }

    @Override
    public void doPurchaseItems() {
        System.out.println("Customer pays for items at the counter.");

    }

    @Override
    public void doDeliverItems() {
        System.out.println("Items are packaged at the counter, and handed to the customer.");
    }
}