Describe the life cycle for stateless and Stateful beans.

Describe the life cycle for Stateful beans.

- Between the client and the session bean, the state of the conversation can be maintained using a stateful session bean.

- The instance variables contain a state only during the invocation by a client method.

- It implements ‘javax.ejb.SessionBean’ interface and is deployed with the declarative attribute ‘stateful’.

- They have instance fields that can be initialized and modified by the client with each method invocation.

- The bean can use the conversational states as its business process methods.