public interface Postman { void deliverMessage(String msg); } A simple implementation of this service prints messages to the console. The implementation class is the dynamic code.

Java gives you the ability to dynamically create strings. Even after you set the string value, you can add more characters to the string value throughout the code.

Get started with a basic example that doesn't use interfaces or dynamic loading, ... Dynamically extend Java ... 1,string_interfaces.PricingPlan20 2,string_interfaces.PricingPlan1510 3,string ...