test.java, customer.java

// test.java

import org.hibernate.*;
import org.hibernate.cfg.*;

public class Test {

public static void main(String[] args) {

try {
SessionFactory sf =
new Configuration().configure().buildSessionFactory();
Session session = sf.openSession();
Transaction tx = session.beginTransaction();

for (int i = 0; i < 200; i++) {
Customer customer = new Customer();
customer.setUsername("customer" + i);
customer.setPassword("customer");
session.save(customer);
}

tx.commit();
session.close();

} catch (HibernateException e) {
e.printStackTrace();
}
}
}

// customer.java
public class Customer {

private int id;
private String username;
private String password;


public int getId() {
return id;
}

public String getPassword() {
return password;
}

public String getUsername() {
return username;
}

public void setId(int id) {
this.id = id;
}

public void setPassword(String password) {
this.password = password;
}

public void setUsername(String username) {
this.username = username;
}

}