Correct Answer: There are three ways that can be used in order for a Thread to be created: A class may extend the Thread class A class may implement the Runnable interface An application can use the Executor framework, in order to create a thread pool The Runnable interface is preferred, as it does not require an object to inherit the Thread class In case your application design requires multiple inheritance, only interfaces can help you Also, the thread pool is very efficient and can be implemented and used very easily
