Customize Interactive Brokers' reqIds() and reqMktData() Java methods
问题 I am trying to write customized code within Interactive Brokers' Java API. There are a bunch of methods that get sent to TWS via the eClientSocket object. Two examples are reqIds() and reqMktData(). These are both void methods, so they do not return anything. Instead, they 'activate' methods written within the class that invokes them (in this case, SampleFrame). These methods are also void, in that they don't return any data. Instead, code is written within these methods (nextValidId() and