Q.1. Write a servlet program to display current date and time of server.
→DateSrv.java
import java.io.*;
import javax.servlet.*;
public class DateSrv extends GenericServlet
public void service(ServletRequestreq, ServletResponse res) throws IOException,
ServletException
res.setContentType("text/html");
PrintWriterpw = res.getWriter();
java.util.Date date = new java.util.Date();
pw.println("<h2>"+"Current Date & Time: " +date.toString()+"</h2>");
pw.close();
Q.2. Design a servlet to display "Welcome IP address of client" to first time visitor.
Display "Welcome-back IP address of client" if the user is revisiting the page. (Use
Cookies) (Hint: Use req.getRemote Addr() to get IP address of client)
→WelcomelP.java
import java.io.*;
import java.util.*;
import jakarta.servlet.*;
import jakarta.servlet.http.*;
public class WelcomeIP extends HttpServlet
Hashtable accesses = new Hashtable();
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
IOException {
res.setContentType("text/html");
Print Writer out = res.getWriter();
String remoteAddr = req.getRemote Addr();
if (remoteAddr = null) {
out.println("Welcome!");
Else{
out.println("IP address:" + remoteAddr + "!<br>");
Date lastAccess= (Date) accesses.get(remoteAddr);
if (lastAccess null) {
out.println("Welcome IP Address Of Client!");
Else{
out.println("Welcome-Back IP Address Of Client: ");
accesses.put(remoteAddr, new Date());
//...Continue handling the request...
3. Create a JSP page to accept a number from an user and display it in words: Example:
123 – One Two Three.
index.html
<!DOCTYPE html>
<html>
<body>
<form method=get action="test.jsp">
Enter Any Number : <input type=text name=num><br><br>
<input type=submit value="Display">
</form>
</body>
</html>
test.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<html>
<body>
<font color=red>
<%! inti,n;
String s1;
%>
<% s1= request.getParameter("num");
i=0;
do
n=s1.length();
char ch=s1.charAt(i); switch(ch)
case '0': out.println("Zero ");
break;
case '1': out.println("One "); break;
case '2': out.println("Two "); break;
case '3': out.println("Three "); break;
case '4': out.println("Four "); break;
case '5': out.println("Five ");break;
break; case '6': out.println("Six ");break;
break; case '7': out.println("Seven "); break;
case '8': out.println("Eight "); break;
case '9': out.println("Nine "); break;
i++;
while(i<n);
%>
</font>
</body>
</html>
web.xml
<web-app>
<servlet>
<servlet-name>xyz</servlet-name>
<jsp-file>/test.jsp</jsp-file>
</servlet>
<servlet-mapping>
<servlet-name>xyz</servlet-name>
<url-pattern>/test</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
4. Write a JSP program to perform Arithmetic operations such as Addition, Subtraction.
Multiplication and Division. Design a HTML to accept two numbers in text box and radio
buttons to display operations. On submit display result as per the selected operation on
next page using JSP.
index.html
<html>
<title>Arithmatic </title>
<body>
<form method="post" action="ArithmaticOperation.jsp">
<fieldset style="width:30%; background-color:#b3d1ff">
<h2><center> Arithmatic Operation</center></h2>
<hr>
<font size=5 face="Times New Roman">
<input type="radio" name="r1" value="add" checked>Addition</input><br>
<input type="radio" name="r1" value="sub">Subtraction</input><br>
<input type="radio" name="r1" value="mul" >Multiplication</input><br>
<input type="radio" name="r1" value="div" >Division</input><br>
</font>
<table>
<tr>
<td>Enter First No:</td>
<td> <input type="text" name="n1" value=""></td>
</tr>
<tr>
<td>Enter Second No: </td>
<td><input type="text" name="n2" value=""></td>
</tr><br>
<tr>
<td></td>
<td><input type="submit" name="result" value="Submit!"></td>
</tr>
</table>
</fieldset>
</form>
</body>
</html>
ArithmaticOperation.jsp
<html>
<body>
<H1><center>Result for <%=request.getParameter("r1")%></center></H1>
<%
String s1=request.getParameter("n1");
String s2=request.getParameter("n2");
int num1=Integer.parseInt(s1);
int num2=Integer.parseInt(s2);
int op=0;
String str=request.getParameter("r1");
if(str.equals("add"))
op=num1+num2;
if(str.equals("sub"))
op=num1-num2;
if(str.equals("mul"))
op=num1*num2;
if(str.equals("div"))
op=num1/num2;
%>
Result is: <%=op%>
</body>
</html>
