talk about relevant background experience you have that makes you believe you would be a good fit for this project. For our example, we will try to implement a simple Shopping Cart where we have two payment strategies using Credit Card or using PayPal. If you don't need the full GUI of the TWS while you are developing or while your application is deployed, use the gateway. Downloaded archive usually contains built jar file in IBJts/source/JavaClient dir (as.72.17 version). Install jar locally mvn install:install-file -DgroupIdtws-api -DartifactIdtws-api -Dversion9.72.17-snapshot -DfileTwsApi. DateOfExpiryexpiryDate; @Override public void pay(int amount) intln(amount " paid with credit/debit card PaypalStrategy.
We could have used composition to create instance variable for strategies but we should avoid that as we want the specific strategy to be applied for a particular task. Strategy pattern is useful when we have multiple algorithms for specific task and we want our application to be flexible to chose any of the algorithm at runtime for specific task. One of the best example of strategy pattern is rt method that takes Comparator parameter.
Java package rategy; public class PaypalStrategy implements PaymentStrategy private String emailId; private String password; public PaypalStrategy(String email, String pwd) this. I want the modifications to achieve the following: (1) connect to the TWS (and reconnect when possible if there is a connection issue) (2) collect data on specific instruments every minute or so (this should be easily changed to different time frequencies, including those that. Java package rategy; public class ShoppingCartTest public static void main(String args) ShoppingCart cart new ShoppingCart Item item1 new Item 1234 10 Item item2 new Item 5678 40 dItem(item1 dItem(item2 /pay by paypal y(new PaypalStrategy "mypwd /pay by credit card y(new CreditCardStrategy Pankaj Kumar " "786. Codera Quant Java framework allows development of automated algorithmic trading strategies, supports backtesting using historical data taken from Interactive Brokers, Yahoo Finance, local database or CSV files and paper or live trade execution via Interactive Brokers TWS Java API. I would rather pay to get things done right the first time. It provides the same API functionlity with much less overhead. I do not need anything fancy. Java package rategy; import cimalFormat; import rayList; import st; public class ShoppingCart /List of items List Item items; public ShoppingCart emsnew ArrayList Item public void addItem(Item item) d(item public void removeItem(Item item) move(item public int calculateTotal int sum 0; for(Item item : items) sum tPrice. There is an open source Java Test Client that is supplied by Interactive Brokers and already has considerable functionality: login to view URL. Java package rategy; public class Item private String upcCode; private int price; public Item(String upc, int cost) this. I want you to modify the code, providing easily understandable comments for every block of modification, to achieve my objectives.
My life savings is on the line so the code has to be right.
There is an open source Java Test Client that is supplied by Interactive Brokers and already has considerable functionality: login to view URL.
The API is all about the trader building an application to his own personal needs and specifications.
Algorithmic trading is possible via proprietary technology built by the customer and customized to the customer's needs and goals.
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