public interface GreetingService {
void sayHello(String name);
}
public class GreetingServiceImpl implements GreetingService {
public void sayHello(String name) {
System.out.println("Hello, " + name + "!");
}
}
ServiceRegistrator.registerService(GreetingService.class, new GreetingServiceImpl());
GreetingService greetingService = ServiceLocator.getService(GreetingService.class);
greetingService.sayHello("Alice");
