Online Examination Java Projectreport.docx

ONLINE EXAMINATION SYSTEM
Page 1
A Mini Project Report
on
“Online Examination System Using JSP Servlet, JSTL and CSS ”
by
Shristi Sharma- B218050
Tanisha Patil- B218069
Of
BTech
Academic Year: 2021-2022
School of Computer Engineering & Technology

Page 2
CONTENTS
 Introduction
 Overview
 Introduction to JAVA
 ER Diagram
 Converting ER Diagram into Tables
 Table Structures
 Code
 Snapshots
 Conclusion
 Scope of Enhancement

Page 3
ACKNOWLEDGEMENT
Before getting into the thick of the things, we would like to express our deep
gratitude to the people who helped us during the course of this project. We are grateful to
our project guide Mr. Rahul Desai for her guidance throughout this project research and
work
We also wish to thank all the faculty members of Information Technology and our
respectable Head of Department Prof. D G Auradkar for their constant help and efficient
teaching procedures,
Names of students:
Anil yadav(4307)
N Karthik(4331)
Pradeep Deshwal(4337)

Page 4
1. ABSTRACT
Exam Software is a Test Management Software, which offers a complete solution for Computer Based
Test (CBT) .They are used to set up multiple choice tests for set time periods that when submitted are
automatically corrected and the results logged beside the student's reference number.
FEATURES
 Administrator login.
 Student registration.
 Management and update of student information ,instructions and questions.
 scope for fixing negative marks and maximum marks to each question.
 Display of result in the form of total score ,correct responses attempted and non attempted
questions.
WHAT IMPACT DOES IT HAVE
 Physical presence at a given location is absolutely not necessary.
 No time is spent on evaluation.
 Results are available instantly.
 The time of starting and completion of examination can be recorded at the server and the student
cannot manipulate the same.
 Even for subjects that the actual examination that will not be conducted online students can be
given extensive practice and training by holding online Mock Tests.
 Almost all competitive exams are multiple choice types and these can be easily conducted
online, for example GCET - Goa Common Entrance Test held to shortlist candidates for medical
and engineering courses.
 Trends of the examination including topic wise trends of each subject can be easily obtained if
required.

Page 5
2. INTRODUCTION
PURPOSE
 The purpose of on-line test simulator is to take online test in an efficient manner and no time wasting for
checking the paper.
 The main objective of on-line test is to efficiently evaluate the candidate thoroughly through a fully
automated system that not only saves lot of time but also gives fast results.
 For students they give papers according to their convenience and time and there is no need of using extra
thing like paper, pen etc.
SCOPE
Scope of this project is very broad in terms of other manually taking exams.
Few of them are:-
 This can be used in educational institutions as well as in corporate world.
 No restriction that examiner has to be present when the candidate takes the test.
FEATURES:
 Secure
 Easy to use
 Reliable and accurate
 No need of examiner
OVEVIEW
The online test created for taking online test has following stages
 Login
 Test

Page 6
 Result
LOGIN:-
 There is a quality login window because this is more secure than other login forms as in a normal
login window there are multiple logins available so that more than one person can access to test with
their individual login.
 It include two login windows one for administrator and another one for student.
TEST:
 Test page is the most creative and important page in this project. It
 consists of 2 modules namely:
 Subject selection
 Utilities
 Utilities:-
It includes:-
 Skip and come back to the question afterwards ifneeded.
 Gives the list of attempted and unattempted questions and can go to any question directly and
can either attempt or change the answer of the already attempted question.

Page 7
TECHNOLOGIES USED
 Front end as:
Eclipse Platform
 Back end as:
Oracle
 Database:
Oracle
 Querying language:
SQL

Page 8
3. SPECIFIC REQUIREMENTS:
External interface utilised:
HARDWARE
1.) Minimum 5 GB space in HDD
2.) IBN Net vista Pentium 4 1.7 GHz
3.) 256 MB DDR SDRAM
4.) GB ULTRA HDD 7200 RPM
5.) 48 x CD ROM
6.) 15 `` color monitor
SOFTWARE
1. Eclipse Platform
2. Windows 7 (Ultimate)
3. ODBC Driver
4. Oracle DBMS with SQL 8.0 Plus

Page 9
Introduction to Java
 Java is Object oriented, Multi-threading language developed by Sun Microsystems in 1991.
 It is designed to be small, simple and portable across different platforms as well as OS.
Features of Java :
Syntax based on C++
 Object-oriented
 Support for Internet applications
 Extensive library of prewritten classes
 Portability among platforms
 Built-in networking security as JRE is inaccessible to other parts of computer
Java Programs:
 Applets:
 Small programs designed to add interactivity to Web sites
 Downloaded with the Web page and launched by the Internet browser
 Servlets :
 Run by Web server on the server
 Typically generate Web content
 Applications:
 Programs that run standalone on a client

Page 10
Java Servlets:
 Servlets are server side applets that are loaded and executed by a web server in the same manner that
applets are loaded and executed by a web browser.
 Java Servlets are useful to create Dynamic pages. Depending upon my input server will give an output
Features of Servlets:
 Database Connectivity
o Insert/Update/delete/drop
o Select
 Servlets Chaining
 Server Side Includes
 Applet Servlet Communication
 Interservlet Communication
 Page Compilation
 Session Tracking
JSP:
Introduction:
 As a Java-based technology, it enjoys all of the advantages that the java language provides with respect
to development and deployment.
 JSP runs on major web platforms.
 Client (web browser) makes a request via an HTTP.
 The web server receives the request and sends it to the Servlets/JSP engine. If the Servlets/JSP is not
loaded, the web server will load it into the JVM and execute it.
 Web server returns response to the Client.
JSP Directives: They generate side effects that are change the way the JSP container processes the
page.
Implicit Objects:

Page 11
 Request
 Response
 Out
 Session
 Application
 Page Context
 Exception
JSP Actions: The JSP actions allow the transfer of control between pages.
 Forward
 Include
 Plug-in
JavaScript:
A scripting language is a lightweight programming language which is basically responsible for
 Creating Dynamic Pages.
 Respond to the events.
 Read and Write HTML Elements.
 Validate Data.
Functions:
 Functions are useful to a programmer when certain tasks are to be repeated during the course of the
program. They are defined by name and invoked with the same. The functions can take parameters and
return result using return statement.
 Recursive Functions are functions that call themselves.
Events:
 Events are signals generated when specific event occurs. Event handlers are scripts written by the
programmer to take advantages of events in JavaScript. Eg:
blur : Occurs when user clicks outside a field.
click: Occurs when user clicks inside a field.
change: Occurs when user changes a field.
focus : Occurs when user focuses over a field

Page 12
E-R diagram
Administrator
updates updates updates
student
Question
questionQues
tion
attempts
s
pwd
id
stud₋name
m
id
gets
Result
Question
Rules
Question
$stud-id
phone
id
$stud-id
ansgiven
id
$q-id
q-id ques
id
ans
id
author
id
op2
id
op3
id
op1
id
op4
id
marks
updates
sett
Question
setno
nmarks
nnkfjn
mnmar
ks
id
time
id
pmarks
nnkfjn
mnmar
ks
id
$stud-id
q₋correct
q₋attempted
d
id
t₋marks
nnkfjn
mnmar
ks
id

Page 13
CONVERTING E-R INTO TABLES
STUDENT- TABLE
S.No. Field name Data Type Description
1. STUD_ID(pk) NUMBER(8) Student identification number
2 Q_ID(pk) NUMBER(2) Question id
3 ANSGIVEN NUMBER(1) Response
4 MARKS NUMBER(1) Marks of each question
ATTEMPT- TABLE
2 Q_ATTEMPTED NUMBER(2) Questions attempted
3 Q_CORRECT NUMBER(3) Correct responses
4 T_MARKS NUMBER(3) Total marks
RESULT- TABLE
2 STUD_NAME VARCHAR2(10) Name of student
3 PHONE NUMBER(10) Student’s contact number
4 PWD VARCHAR2(8) Password

Page 14
SETT-TABLE
1. TIME NUMBER(2) Time duration
2 NMARKS NUMBER(2) Negative Marks
3 PMARKS NUMBER(2) Positive Marks
QUESTION- TABLE
1 Q_ID NUMBER(2) Question id
2 QUES VARCHAR2(100) Question
3 ANS NUMBER(1) Correct answer of question
4 AUTHOR VARCHAR2(20) Author
5 OP1 VARCHAR2(40) Option 1
6 OP2 VARCHAR2(40) Option2

Page 15
RELATIONAL DATABASE DESIGN
The database consists of following tables:
 Student table
 Attempt table
 result table
 question table
 setting table
 rules
 Administrator updates student table where primary key is stud_id its other
attributes like password , name, phone are dependent on it. ‘Attempt‘ is a
many to one relationship between entities student and question .
 ‘Attempt’ contains compositeprimary keys (stud_id,q_id).its attributes are
dependent on this composite primary key,stud_id,q_id act as foreign key for
both student table and question table.
 Question table contains q_id as its primary key which uniquely defines the
entire question table.
 ‘Gets’ relationship connects student and result entities where primary key is
stud_id.
 Administrator updates setting table which contains positive marks, negative
marks, time limit, total marks.
 Administrator also updates rules or instructions.

Page 16
SOURCE CODE
PAGE:page1.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>AIT EXAM</title>
</head>
<body background="img36.jpg">
<center>
<table cellpadding=8 cellspacing=8 border="10" bgcolor="transparent">
<th bgcolor="transparent" colspan=2>
<IMG style="WIDTH: 120px; HEIGHT: 90px" height=90 src="aitlogo2.gif" width=115 > <BR>
<font face="Times New Roman" color=white size=15 >ARMY INSTITUTE OF
TECHNOLOGY</FONT><BR></th>
<tr bgcolor="transparent">
<td valign=top>
<font size=5 face="Times New Roman" color=LIGHTYELLOW>
DEPARTMENT OF INFORMATION TECHNOLOGY<BR><BR></font>
<font face="Times New Roman" color=LIGHTYELLOW size=5>
<MARQUEE direction=left WIDTH=100% BEHAVIOR=SCROLL BGColor=TRANSPARENT >ONLINE
EXAMINATION</MARQUEE><BR><BR>
<input type="button" value=" STUDENT LOGIN "
onclick="location.href='studlog.jsp'" ><br><BR>
<input type="button" value="ADMINISTRATOR LOGIN"
onclick="location.href='adminlogin.jsp'"><br><BR>
<input type="button" value=" CLOSE "
onclick="window.close()"><br><BR>
</font>
</tr>
</body>
</html>
PAGE:adminlogin.jsp
<html>
<head>
<SCRIPT type="text/javascript">
window.history.forward();
function noBack() { window.history.forward(); }
</SCRIPT>
<title>Insert title here</title>
</head>

Page 17
<body background="img36.jpg" onLoad=document.f1.t1.focus()>
<form name="f1" method="post" action="adminlogin.jsp">
<CENTER>
<BR><BR><BR><BR><BR>
<font face="Times New Roman" color=LIGHTgrey size=5 >ADMINISTRATOR
LOGIN</FONT><BR></th>
<td valign=top align=left>
<b> USER_ID </b>
</font>
        <input type="text" name="t1" size=20
maxlength=20></td>
</tr>
<b>PASSWORD</b>
</font>
<input type="password" name="t2" size=20 maxlength=20></td>
</tr>
<td valign=top >
<input type="submit" name="b1" value=" LOGIN ">
<input type="button" value=" EXIT " onclick="location.href='page1.jsp'">
</tr>
</TABLE>
</CENTER>
</form>
<%
int flag=0;
String user=request.getParameter("t1");
String pass=request.getParameter("t2");
if(user!=" " && pass!=" ")
{
try{
if((user.equals("user")) && (pass.equals("pass")))
response.sendRedirect("adminupdate.jsp");
else
{ %>
<script language="javascript">
alert ("Invalid ID/Password");
</script>
<%
}}catch(Exception e){}
}
%>
</body>

Page 18
</html>
PAGE:studentregistration.jsp
pageEncoding="ISO-8859-1" import="java.sql.*"%>
<html>
<%!public int flag=0;%>
<form action="studentregistration.jsp" name="f1" method=post>
<center>
<BR><BR><BR><BR>
<font size=10 face="Times New Roman" color=LIGHTgrey>STUDENT REGISTRATION </font>
<br>
</th>
<b>STUDENT_ID</b>
</font>
    <input type="text" name="t2" value="" size=20
maxlength=20></td>
<td valign=top align=left> <font size=5 face="Times New Roman"
color=LIGHTYELLOW><b>NAME</b>
</font>
              &nb
sp;<input type="text" name="t1" value="" id="txt1" size=20 maxlength=20></td>
</tr>
<b>CONTACT NO.</b>
</font>
<input type="text" name="t3" value="" size=20 maxlength=10></td>
<b>PASSWORD</b>
</font>
<td align=center colspan=2>
<input type="SUBMIT" value="SUBMIT" name="submit" >
<input type="submit" value="SEARCH" name="submit">
<input type="SUBMIT" value="DELETE"name="submit" >
<input type="SUBMIT" value="UPDATE"name="submit">
<%
String s=request.getParameter("submit");
String name=request.getParameter("t1");
String id=request.getParameter("t2");
String phone=request.getParameter("t3");
String pwd=request.getParameter("t4");

Page 19
try{
if(s.equals("SUBMIT"))
{
if(id!="" && name!="" && phone!="" && pwd!= "")
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:abc",
"scott", "anil");
Statement st=con.createStatement();
String sql="insert into student
values("+id+",'"+name+"',"+phone+",'"+pwd+"')";
st.execute(sql);
%>
<script language=javascript>
alert("Inserted Sucessfully");
</script>
<%
}
else
{
%>
alert("Enter All Entries");
</script>
<%
}
}
}
catch(Exception e1)
{
}
if(!(id==" "))
{
try{
if(s.equals("DELETE"))
{%>
var b=confirm ("Do You Confirm ");
if(b==1)
{
<%
Connection con=DriverManager.getConnection("jdbc:odbc:abc", "scott",
"anil");
String query="delete from student where stud_id="+id;
st.executeUpdate(query);

Page 20
%>
alert("Deleted");
}
</script>
<%
}
}
catch(Exception e1)
{
}
}
if(!(id==" "))
{
try{
if(s.equals("SEARCH"))
{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:abc", "scott", "anil");
ResultSet rs=st.executeQuery("select * from student where stud_id="+id);
if(rs.next())
{
%>
alert("search found");
document.f1.t2.value="<%=rs.getString(1)%>";
</script>
<%
}
else
{
%>
alert("Record not found");
</script>
<%
}
}
}
catch(Exception e1)
{
}
}
if(!(name==" " && id==" " && phone==" " && pwd== " "))
{
try{
if(s.equals("UPDATE"))
{

Page 21
String query="update student set
stud_id="+id+",stud_name='"+name+"',phone="+phone+",pwd='"+pwd+"'where stud_id="+id;
%>
alert("Updated Sucessfully");
</script>
<%
}
}catch(Exception e1)
{
}
}
%>
<input type="button" value=" EXIT " onclick="location.href='adminupdate.jsp'">
</tr>
</table>
</center>
</form>
</body>
</html>
PAGE:question.jsp
pageEncoding="ISO-8859-1"import="java.sql.*" %>
<html>
<head>
<%!public int i=1;%>
</head>
<form action="question.jsp" name="f1" method=post>
<center>
<BR><BR><BR><BR>
<font size=10 face="Times New Roman" color=LIGHTgrey>QUESTION BANK</font>
<br>
</th>
<td valign=top>
<b>Q.NO.</b>
</font>
<input type="text" name="t1" value="" id="txt1" size=3 maxlength=3></td>
<td valign=top>
<b>AUTHOR</b>
</font>

Page 22
</tr>
<b>QUESTION</b>
</font>
<br><TEXTAREA name="t3" rows=5 cols=100 Wrap=true> </TEXTAREA></td>
</tr>
<input type='radio' name='o1' value=1>1
<input type="text" name="t4" value="" size=40 maxlength=40><br>
<input type='radio' name='o1'value=2>2
<input type="text" name="t7" value="" size=40 maxlength=40>
</td>
</tr>
<input type="submit" value="SEARCH" name="submit">
<%
String qid=request.getParameter("t1");
String author=request.getParameter("t2");
String quest=request.getParameter("t3");
String op1=request.getParameter("t4");
String ans=request.getParameter("o1");
//int ans2=Integer.parseInt(ans);
try{
{
if(qid!=null && author!=null && quest!=null && op1!=null && op2!=null &&
op3!=null && op4!=null && ans!=null)
{
//int qid2=Integer.parseInt(qid);
"scott", "anil");
Statement
st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
String query1="insert into question
values("+qid+",'"+quest+"',"+ans+",'"+author+"','"+op1+"','"+op2+"','"+op3+"','"+op4+"'
)";
st.executeUpdate(query1);
%>

Page 23
</script>
<%
}
else
{
%>
alert("Enter all entries");
</script>
<%
}
}
{out.println(e1);}
if(!( qid==" " ))
{
try{
{
ResultSet rs=st.executeQuery("select * from question where q_id="+qid);
if(rs.next())
{
%>
</script>
<%
}
else
{
%>
</script>
<%
}
}
{
}
}

Page 24
if(!(qid==" " && author==" " && quest==" " && op1== " "&& op2== " "&& op3== " "&&
op4== " "&& ans== " "))
{
try{
{
String query="update question set
q_id="+qid+",ques='"+quest+"',ans="+ans+",author='"+author+"',op1='"+op1+"',op2='"+op2+
"',op3='"+op3+"',op4='"+op4+"'where q_id="+qid;
%>
</script>
<%
}
{
}
}
if(!(qid==" "))
{
try{
{
%>
if(b==1)
{
<%
Connection
con=DriverManager.getConnection("jdbc:odbc:abc", "scott", "anil");
String query="delete from question where
q_id="+qid;
%>
alert("Deleted");
}
</script>
<%
}
{
}
}

Page 25
%>
</td>
</tr>
</table>
</center>
</form>
</body>
</html>
PAGE:adminupdate.jsp
<html>
</SCRIPT>
<head>
</head>
<form action="adminupdate.jsp" name="f1" method=post>
<br><br><br><br>
<center>
<font face="Times New Roman" color=LIGHTGREY size=5>ADMINISTRATOR</FONT><BR></th>
<td valign=top >
<input type="button" value="STUDENT INFO"
onclick="location.href='studentregistration.jsp'" ><br><BR>
<input type="button" value=" QUESTIONS "
onclick="location.href='question.jsp'"><br><BR>
<input type="button" value="INSTRUCTIONS" onclick="location.href='.jsp'" ><br><BR>
<input type="button" value=" SETTINGS " onclick="location.href='settings.jsp'"
><br><BR>
<input type="SUBMIT" value="RESET RECORD" name="submit" ><br><BR>
<input type="button" value=" LOGOUT " onclick="location.href='page1.jsp' "
>
<%
try{
if(s.equals("RESET RECORD"))
{%>
if(b==1)
{
<%

Page 26
"anil");
String query="delete from result ";
%>
alert("Deleted");
}
</script>
<%
}
}
catch(Exception e1)
{
}
%>
</td>
</tr>
</table>
</center>
</form>
</body>
</html>
PAGE:ins_update.jsp
<html>
<head>
</head>
<form action="ins_update.jsp" name="f1" method=post>
<center>
<table cellpadding=8 cellspacing=8 border="10" bgcolor="transparent"
style="position:absolute;left:30px;top:25px" width=500 height=400>
<font size=10 face="Times New Roman" color=LIGHTgrey>INSTRUCTIONS</font>
<br>
</th>
<td valign=top ALIGN="LEFT">
<b>SR. NO.</b>
</font>
<input type="text" name="t1" value="" id="txt1" size=3 maxlength=3><BR><BR><BR>.
<b>INSTRUCTION</b>
</font>

Page 27
<br><TEXTAREA name="t2" rows=5 cols=60 Wrap=true> </TEXTAREA></td>
</tr>
<%
String id=request.getParameter("t1");
String inst=request.getParameter("t2");
//int ans2=Integer.parseInt(ans);
try{
{
if(id!=null && inst!=null )
{
//int qid2=Integer.parseInt(qid);
"scott", "anil");
Statement
st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
String query1="insert into rule values('"+inst+"',"+id+")";
st.executeUpdate(query1);
%>
</script>
<%
}
else
{
%>
alert("Enter All Enteries");
</script>
<%
}
}
{}
if(!( id==" " ))
{
try{

Page 28
{
ResultSet rs=st.executeQuery("select * from rule where ins_id="+id);
if(rs.next())
{
%>
document.f1.t1.value=<%=rs.getString(2)%>;
document.f1.t2.value=<%=rs.getString(1)%>;
</script>
<%
}
else
{
%>
</script>
<%
}
}
{
}
}
if(!(id==" " && inst== " "))
{
try{
{
String query="update rule set ins_id="+id+",inst='"+inst+"'where ins_id="+id;
%>
</script>
<%
}
{
}
}
if(!(id==" "))
{

Page 29
try{
{
%>
if(b==1)
{
<%
Connection
con=DriverManager.getConnection("jdbc:odbc:abc", "scott", "anil");
String query="delete from rule where ins_id="+id;
%>
alert("Deleted");
}
</script>
<%
}
{
}
}
%>
</td>
</tr>
</table>
</center>
<font face="Times New Roman" color=LIGHTYELLOW size=5 >
<TABLE border=10 style="position:absolute;left:660px;top:25px " width=600>
<%Object s3=session.getAttribute("name"); %>
<%
try{
ResultSet rs=st.executeQuery("select * from rule order by ins_id");
while(rs.next())
{
%>
<tr>
<%
out.println("<td>"+rs.getString(2));
out.println( "<td>"+rs.getString (1));
%>
</tr>
<%

Page 30
}
{}
%>
</TABLE>
</font>
</form>
</body>
</html>
PAGE:ins_update.jsp
<html>
<head>
</head>
<form action="settings.jsp" method=post>
<center>
<BR><BR><BR><BR>
<font size=10 face="Times New Roman" color=LIGHTgrey>SETTINGS </font>
<br>
</th>
<b>TIME DURATION</b>
</font>
      <input type="text" name="t1" value="" id="txt1"
size=20 maxlength=20></td></tr>
<TR><td valign=top align=left>
<b>POSITIVE MARKS</b>
</font>
</tr>
<b>NEGATIVE MARKS</b>
</font>
<input type="SUBMIT" value="SUBMIT">

Page 31
<%
String td=request.getParameter("t1");
String pm=request.getParameter("t2");
String nm=request.getParameter("t3");
if(!(td==" " && pm==" " && nm==" "))
{
try{
int x1=Integer.parseInt(td);
int x2=Integer.parseInt(pm);
int x3=Integer.parseInt(nm);
st.executeQuery("update sett set time="+x1+",pmarks="+x2+",nmarks="+x3+"where setno
= 1");
%>
alert("Updated successfully!!");
</script>
<%
{
}
}
%>
</tr>
</table>
</center>
</form>
</body>
</html>
PAGE:settings.jsp
<html>
<head>

Page 32
</head>
<form action="settings.jsp" method=post>
<center>
<BR><BR><BR><BR>
<font size=10 face="Times New Roman" color=LIGHTgrey>SETTINGS </font>
<br>
</th>
<b>TIME DURATION</b>
</font>
      <input type="text" name="t1" value="" id="txt1"
size=20 maxlength=20></td></tr>
<TR><td valign=top align=left>
<b>POSITIVE MARKS</b>
</font>
</tr>
<b>NEGATIVE MARKS</b>
</font>
<input type="SUBMIT" value="SUBMIT">
<%
String td=request.getParameter("t1");
String pm=request.getParameter("t2");
String nm=request.getParameter("t3");
if(!(td==" " && pm==" " && nm==" "))
{
try{
int x1=Integer.parseInt(td);
int x2=Integer.parseInt(pm);
int x3=Integer.parseInt(nm);
st.executeQuery("update sett set time="+x1+",pmarks="+x2+",nmarks="+x3+"where setno
= 1");
%>
alert("Updated successfully!!");

Page 33
</script>
<%
{
}
}
%>
</tr>
</table>
</center>
</form>
</body>
</html>
PAGE:studlog.jsp
<%@ page language ="java" import="java.sql.*" %>
<html>
</SCRIPT>
<body background="img36.jpg" onLoad=document.f1.t1.focus()>
<form name="f1" method="post">
<CENTER>
<BR><BR><BR><BR><BR>
<font face="Times New Roman" color=LIGHTgrey size=5 ><B>STUDENT
LOGIN</B></FONT><BR></th>
<td valign=top align =left>
USER_ID
</font>
        <input type="text" name="t1" value=""
size=20 maxlength=20></td>
</tr>
<td valign=top align =left>
PASSWORD
</font>
<input type="password" name="t2" value="" size=20 maxlength=20></td>

Page 34
</tr>
<td valign=top>
<input type="submit" name="b1" value="LOGIN">
<input type="button" value="EXIT" onclick="location.href='page1.jsp'">
</tr>
</TABLE>
</CENTER>
<%
String user=request.getParameter("t1");
String pass=request.getParameter("t2");
if(user!=" " && pass!=" ")
{
try{
ResultSet rs=st.executeQuery("select * from student");
while(rs.next())
{
String username=rs.getString(1);
int stud_id=Integer.parseInt(username);
String password=rs.getString(4);
String name=rs.getString(2);
if(user.equals(username) && pass.equals(password))
{
ResultSet rs1=st.executeQuery("select * from result where
stud_id="+stud_id);
if(!rs1.next())
{
session.setAttribute("user",user);
session.setAttribute("name",name);
%>
<jsp:forward page="instructions.jsp" />
<input type=hidden name=user value=<%= username %>>
<% }
else
{
%>
alert ("ID ALREADY ENTERED");
</script>
<%
}
}
}
%>
alert ("Invalid ID/Password");
</script>

Page 35
<%
{
}
}
%>
</body>
</html>
PAGE:exam1.jsp
pageEncoding="ISO-8859-1" import="java.sql.*" %>
<html>
<%String t=request.getParameter("t");int t1=Integer.parseInt(t);%>
<script language="JavaScript">
var flag;
var secs;
function cd() {
mins = min; // change minutes here
secs = 0 + s(":01"); // change seconds here (always add an additional second to
your total)
redo();
}
function m(obj) {
for(var i = 0; i < obj.length; i++) {
if(obj.substring(i, i + 1) == ":")
break;
}
return(obj.substring(0, i));
}
function s(obj) {
for(var i = 0; i < obj.length; i++) {
if(obj.substring(i, i + 1) == ":")
break;
}
return(obj.substring(i + 1, obj.length));
}
function dis(mins,secs) {
var disp;
if(mins <= 9) {
disp = " 0";
} else {
disp = " ";
}
disp += mins + ":";

Page 36
if(secs <= 9) {
disp += "0" + secs;
} else {
disp += secs;
}
return(disp);
}
function redo() {
secs--;
if(secs == -1) {
secs = 59;
mins--;
}
document.cd.disp.value = dis(mins,secs); // setup additional displays here.
if((mins == 0) && (secs == 0)) {
window.alert("Time is up. Press OK to continue."); // change timeout
message as required
window.location = "exam2.java"
} else {
cd = setTimeout("redo()",1000);
}
}
function init() {
cd();
}
document.onload = init;
</script>
function fun1()
{
//alert("previous");
document.exam1.action="exam2?t=<%= t1%>&x=2";
exam1.submit();
}
function fun2()
{
//alert("submit");
exam1.submit();
}
function fun3()
{
// alert("next");
document.exam1.action="exam2?t=<%= t1%>&x=3";
exam1.submit();
}
</SCRIPT>
<head>
<%!public int i=1,qid=0,mark=0,x1=0,x2=0,min1=40;String s2=null;boolean flag=false;%>

Page 37
</head>
<script language="JavaScript">
var min=19;
</script>
<form name="cd">
<input id="txt" bgcolor="transparent" readonly="true" type="text" value="10:00"
border="0" name="disp">
</form>
<form name="exam1" action="exam2?t=<%= t1 %>&x=1" method=post>
<center>
<font face="Times New Roman" color=LIGHTgrey size=5 >
<BR><BR>
<%
try{
Statement st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
ResultSet rs=st.executeQuery("select * from question where q_id="+t1);
rs.next();
s2=rs.getString(3);
qid=Integer.parseInt(rs.getString(1));
Object s3= session.getAttribute("user");
out.println( "<tr> <td align=center > <b> AUTHOR</b> :-"
+ rs.getString(4) +"<td><B>TIME LEFT </B>:-<input id='txt' bgcolor=transparent
readonly=true type=text value=10:00 border=0 name=disp></TR>");
out.println( "<tr><td align=left colspan=2>"+rs.getString(1)
+"   " + rs.getString(2)+"</tr>");
out.println("<tr><td align=left colspan=2> <input type='radio' name='o1' value=1>
1." + rs.getString(5)+"<br><input type='radio' name='o1' value=2> 2." +
rs.getString(6)+"<br><input type='radio' name='o1' value=3> 3." +
rs.getString(7)+"<br><input type='radio' name='o1' value=4> 4." +
rs.getString(8)+"</tr>" );
%>
<input type=hidden name=q_id value=<%= qid %>>
<input type=hidden name=ans value=<%= s2 %>>
<input type=hidden name=user value=<%= s3 %>>
<%
}catch(Exception e){}
%>
<td align=center colspan=2><input type=button value=" PREVIOUS " onclick=fun1()>
<input type=button value=" SUBMIT " onclick=fun2()>
<input type=button value=" NEXT " onclick=fun3()>

Page 38
<input type=button value=" EXIT "
onclick="location.href='result.jsp'">
</table>
</font>
</center>
</form>
</body>
</html>
PAGE:exam2.java
import java.io.IOException;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
import javax.servlet.http.HttpSession;
import javax.servlet.http.*;
import java.io.*;
/**
* Servlet implementation class for Servlet: exam2
*
*/
public class exam2 extends javax.servlet.http.HttpServlet implements
javax.servlet.Servlet {
static final long serialVersionUID = 1L;
/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#HttpServlet()
*/
public exam2() {
super();
}
/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}
/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
String x=request.getParameter("x");
String t=request.getParameter("t");
int t1=Integer.parseInt(t);
if(x.equals("2"))
{
t1--;

Page 39
RequestDispatcher view =
request.getRequestDispatcher("exam1.jsp?t="+t1);
view.forward(request, response);
}
else if(x.equals("3"))
{
t1++;
}
else
{
try
{
String s2=request.getParameter("ans");
String s1=request.getParameter("o1");
String qid=request.getParameter("q_id");
String s3=request.getParameter("user");
response.getWriter().print(s3);
int q_id=Integer.parseInt(qid);
"anil");
ResultSet rs2=st.executeQuery("select stud_id from attempt where
q_id="+q_id);
if(!rs2.next())
{
ResultSet rs1=st.executeQuery("select * from sett");
rs1.next();
int x1=Integer.parseInt(rs1.getString(4));
int x2=Integer.parseInt(rs1.getString(3));
if(s1!=null)
{
int ans1 = Integer.parseInt(s1);
if(s2.equals(s1))
{
st.execute("insert into attempt
values("+s3+","+q_id+","+ans1+","+x1+")");
}
else
{
st.execute("insert into attempt
values("+s3+","+q_id+","+ans1+","+-x2+")");
}
}
t1++;
}
else
{
/* PrintWriter pw = response.getWriter();
response.setContentType("text/html");

Page 40
pw.println("<html><head>"+
"<script language="text/javascript">"+
"alert (" already submitted")"+
"</script></head></html>"); */
}
}
catch(Exception e)
{
response.getWriter().print(e);
}
}
}
}
PAGE:result.jsp
pageEncoding="ISO-8859-1"import="java.sql.*"%>
<html>
<head>
</head>
<body>
<font face="Times New Roman" color=LIGHTYELLOW size=5 >
<CENTER>
<BR><BR><BR><BR>
<font face="Times New Roman" color=LIGHTGREY size=7>
RESULT<BR></font></th>
<%
try{
int i=0,marks=0,ta=0,flag=0;
Object s3=session.getAttribute("user");
Statement st=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
ResultSet rs1=st.executeQuery("select * from sett");
rs1.next();
String x=rs1.getString(4);
ResultSet rs=st.executeQuery("select * from attempt");
while(rs.next())
{
ta=ta+1;
if(x.equals(rs.getString(4)))
{
i=i+1;
}
marks=marks+Integer.parseInt(rs.getString(4));

Page 41
}
st.execute("insert into result values("+s3+","+ta+","+i+","+marks+")");
out.println("<tr><td>NUMBER OF QUESTIONS ATTEMPTED:<td><B>"+ta+"</B></tr>");
out.println("<tr><td>NUMBER OF CORRECT ANSWERS :<td><B>"+i+"</B></tr>");
out.println("<tr><td>TOTAL MARKS OBTAINED :<td><B>"+marks+"</B></tr>");
st.execute("delete from attempt");
{}%>
<td align=center colspan=2><input type="button" value=" CLOSE "
onclick="window.close()"></tr>
</table>
</CENTER>
</font>
</body>
</html>

Page 42
SNAPSHOTS:

Page 43

Page 44

Page 45
Future scope
There have been numerous cases of computer glitches, errors in content, and security lapses reported in
online examination .So in the near future the so –called software could be made more secure and
reliable.While electronic glitches are rare, they have been known to occur, for instance when computer
crashes voided the efforts of thousands of student. There are also cases in which the correction software has
corrupted scores. so the software can be programmed well so as to avoid corrupted scores.
CONCLUSION
The On line test System is developed using visual basic and sql fully meets the objectives of the system for
which it has been developed. The system is operated at a high level of efficiency and all the teachers and
user associated with the system understands its advantage. The system solves the problem. It was intended
to solve as requirement specification.

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