Answer / Phool Kunwar

Designing an Online Examination Application Using HTML, JSP, Servlets, JDBC, Session Management, and Cookies:
1. User Interface (HTML): Create an attractive and user-friendly interface using HTML.
2. Registration: Implement a registration form to capture student details and store them in the database using JDBC.
3. Login: Design a login page where students can enter their credentials to access the examination application.
4. Servlets and JSP: Use servlets for handling HTTP requests and JSP (JavaServer Pages) for generating dynamic content.
5. Session Management: Implement session management to maintain user sessions, ensuring that users remain logged in throughout their examination.
6. Cookies: Utilize cookies to store user preferences and session IDs, enhancing the user experience.
7. Database Access: Use JDBC (Java Database Connectivity) to interact with the database, retrieving and storing examination data.

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exception org.apache.jasper.JasperException: java.lang.NullPointerException org.apache.jasper.servlet.JspServletWrapper.handleJs pException(JspServletWrapper.java:491) org.apache.jasper.servlet.JspServletWrapper.service( JspServletWrapper.java:419) org.apache.jasper.servlet.JspServlet.serviceJspFile( JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServ let.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.j ava:717) root cause java.lang.NullPointerException org.apache.struts.taglib.TagUtils.retrieveMessageRes ources(TagUtils.java:1175) org.apache.struts.taglib.TagUtils.message(TagUtils.j ava:1038) org.apache.struts.taglib.bean.MessageTag.doStartTag( MessageTag.java:224) org.apache.jsp.register_jsp._jspx_meth_bean_005fmess age_005f0(register_jsp.java:138) org.apache.jsp.register_jsp._jspService(register_jsp .java:94) org.apache.jasper.runtime.HttpJspBase.service(HttpJs pBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.j ava:717) org.apache.jasper.servlet.JspServletWrapper.service( JspServletWrapper.java:377) org.apache.jasper.servlet.JspServlet.serviceJspFile( JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServ let.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.j ava:717)

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