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> ## Session Bean Examples

> Session beans are powerful because they extend the reach of your clients into remote servers yet are easy to build. In Chapter 24, you built a stateless session bean named `ConverterBean`. This chapter examines the source code of three more session beans:

> - `CartBean`: a stateful session bean that is accessed by a remote client
> - `HelloServiceBean`: a stateless session bean that implements a Web service
> - `TimerSessionBean`: a stateless session bean that sets a timer

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