How to use bind variables in query

Using Bind Variables in query

How to use bind variables

//Following code helps to use bind variables in java and Oracle query

import org.hibernate.SessionFactory;

private SessionFactory sessionFactory;

public void method() {

      Session session = null;

      String  studentId = “R16”;

            try {

            session = sessionFactory.openSession();

String sql_select_query = "select name, class, age from class_table where id = :studentId";

            Query query = session.createSQLQuery(sql_select_query);

            query.setString("studentId", studentId);

                  List<Object[]> list = query.list();

      }          

 }

//Use catch or finally block with the above code

//Also use hibernate .jar file to implement above code