hi friend,

Hibernate framework has various of interfaces but, the core interfaces that are used in almost every hibernate applications using which one can save and find the persistent objects and can control the transaction are as follows :

• Session
• SessionFactory
• Configuration
• Transaction

For example and more tutorial please visit the following link may, this will be helpful for you.

http://www.roseindia.net/hibernate/firstexample.shtml

http://www.roseindia.net/hibernate/hibernate4/firstHibernateApplication.shtml