File list (Check if you may need any files):
grade\addgrade.jsp
.....\adduser.jsp
.....\grade.jsp
.....\images\title.jpg
.....\index.jsp
.....\message.jsp
.....\mod.jsp
.....\passwdchange.jsp
.....\student.jsp
.....\teacher.jsp
.....\test.jsp
.....\WEB-INF\classes\AddGradeServlet.class
.....\.......\.......\AddGradeServlet.java
.....\.......\.......\AddUserServlet.class
.....\.......\.......\AddUserServlet.java
.....\.......\.......\bean\DataBean.class
.....\.......\.......\DataBean.java
.....\.......\.......\GradeChangeServlet.class
.....\.......\.......\GradeChangeServlet.java
.....\.......\.......\LoginServlet.class
.....\.......\.......\LoginServlet.java
.....\.......\.......\PasswdChangeServlet.class
.....\.......\.......\PasswdChangeServlet.java
.....\.......\web.xml
.....\.......\classes\bean
.....\.......\classes
.....\.......\lib
.....\images
.....\WEB-INF
grade