Note the following output in the Output window, indicating that the DB server has started: To start the Java DB Database from NetBeans, perform the following steps. The following steps demonstrate creating the database playerDB. We will use Java DB as the database server. Java DB database server is part of NetBeans. Download and unzip the files.zip file that contains the file you need to perform this tutorial.Before starting this tutorial, you should have the software installed as listed under Software Requirements.Download and install NetBeans 7.0.1 from this link.Download and install JDK 7.0 from this link.The following is a list of software requirements: Persist data in the database using Entity classes.Generate Entity classes for tables in the database.In this tutorial, you will create and configure a persistent Unit using JPA. Though JPA is a part of EJB 3 Specification it can be used in Java SE applications, outside of the Java EE environment. The mapping between Java objects and a relational database is done using annotations and/or XML deployment descriptors. JPA is a lightweight, POJO-based framework for object-relational mapping. The Java Persistence API(JPA) provides an object/relational mapping facility for managing relational data in Java applications.