Looking for sample code of HOW-TO use EntityFacadeImpl class

I have created the following using JDeveloper Ver 9.0.3.1:
1. Entity Bean
Localinterface: userLocal.java
Local home interface: userLocalHome.java
Remote interface: user.java
Remote home interface: userHome.java
Bean implementation: userBean.java
2. Facade Session Bean (auto generated by JDeveloper)
userFacade.xml
userFacadeColImpl.java
userFacadeImpl.java
I am looking for sample client code on how to make use the facade session bean.
Thanks in advance.

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