RAJ SOLUTION'S SAHIN N. RAJ VALSAD ALL MCA MATERIAL GTU BOARD

Friday, June 1, 2012

Write a Servlet which displays the appropriate PDF file to the client, by looking at a request parameter

Assume that we have got three pdf files for the MCA-1 Syllabus, MCA-2 Syllabus and MCA-3 Syllabus respectively, Now write a Servlet which displays the appropriate PDF file to the client, by looking at a request

parameter for the year (1, 2 or 3).

Hint: Create a HTML pages which will have a textbox and

button. The user will enter the values in the textbox –

either 1,2,3. Pass the value to a servlet page which will

read the parameter value and display the appropriate

PDF file. If the option is invalid they just display the

message invalid semester.

Note: You can use any method – GET or POST

Step 1: Create HTML Page which will have a textbox and button.
which can pass value to servlet page.

Step 2: Create ViewPdf.java servlet file which can interact with pdf files and display it.

Step 3: Create WEB.XML file for Mapping Servlet file.

Thursday, May 31, 2012

Database Visit Counter

Database Visit Counter

Write a Servlet which displays a message and also displays how many times the message has been displayed (how many times the page has been visited).

Hint: Create a file which will update the counter each and every time the page is being loaded.

(Using Database Connection)

Step 1: Create a database with name database.mdb , Table name dbCounter , Column name counter with type numeric and add dsn with name db_count.

Step 2: Create VisitCounter.java servlet file which can interact with database for fetching and update counter value.

Step 3: Create WEB.XML file for Mapping Servlet file.

Wednesday, May 30, 2012

Cookies Visit Counter

Cookies Visit Counter

(Making use of cookies)

Step 1: Create VisitPage.Java using Packages Concepts for servlet which can handle counter variable to keep a track on visits.

Step 2: Create WEB.XML file for Mapping Servlet file.

Write a Servlet which displays a message and also displays how many times the message has been displayed (how many times the page has been visited).

Write a Servlet which displays a message and also displays how many times the message has been displayed (how many times the page has been visited).

Hint: Create a file which will update the counter each and every time the page is being loaded.

(Simple Counter Variable is Used Without making use of session , cookies or database)

Step 1: Create VisitCounter.Java using Packages Concepts for servlet which can handle counter variable to keep a track on visits.

Step 2: Create WEB.XML file for Mapping Servlet file.

Write a Servlet to display all the attributes available from headers

Write a Servlet to display all the attributes available from headers (request and context).
Hint: Make use of getHeader() to get all the related and display all the attributes available in the getHeader() function.
All the attribute:
• Accept
• Accept-Charset
• Accept-Encoding
• Accept-Language
• Authorization
• Connection
• Content-Length
• Host
• Referer
• User-Agent

Step 1: Create GetHeader.Java using Packages Concepts for servlet which can handle all header Attributes.

Step 2: Create WEB.XML file for Mapping Servlet file.

Monday, May 28, 2012

Write a Servlet to display all the headers available from request.

Write a Servlet to display all the headers available from request.

Hint: display all the header content using all the header function available in the request header.

Display value for all the function:
• getAuthType
• getRemoteUser
• getContentLength
• getContentType
• getHeaderNames
• getMethod
• getRequestURI
• getQueryString
• getProtocol

Step 1: Create HeaderInfo.Java using Packages Concepts for servlet which can handle all header functions.

Step 2: Create WEB.XML file for Mapping Servlet file.

Sunday, May 27, 2012

Change the above program definition implement more than one textbox and other element on the page pass them as a parameter and handle

Change the above program definition implement more
than one textbox and other element on the page pass
them as a parameter and handle

Step 1 : Create HTML Page With All Form Elements Such As TextBox,TextArea,Radio,CheckBox,List With MultipleSelection.

Step 2 : Create GetPara.Java which can handle all this form elements and display output in proper html page.

Step 3: Create Web.INF file for Servlet Mapping.

Saturday, May 26, 2012

Write a Servlet which will display all the parameters which are passed to the servlet page.

Write a Servlet which will display all the parameters which are passed to the servlet page.

Hint: The previous page which will send the parameter should implement the method GET and the page should contain one textbox and a button. When the button is clicked the servlet page should get opened and should read the value of the textbox passed as an parameter.

Step 1 : Create Simple HTML Page With Form Elements.

 
<html>
 <head>
  <title>GetParmter Servelt</title>
 </head> 
 <body>
  <form action="http://localhost:8080/GetParameter/GetParameter" method="GET">
   <input type="text" name="txt_value" value="" />
   <input type="Submit" name="btn_value" value="Get Value" />
  </form>
 </body>
</html>

Step 2 : Create Servlet File Which GET Values from this HTML Form.

package pack1;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class GetPara extends HttpServlet
{
          public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter(); 
 String getValue = request.getParameter("txt_value");
 out.println(getValue);
    }
}

Step 3 : Create Web.XML File.

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app>
<servlet>
      <servlet-name>GetParameter</servlet-name>
      <servlet-class>pack1.GetPara</servlet-class>
</servlet>   
<servlet-mapping>
        <servlet-name>GetParameter</servlet-name>
        <url-pattern>/GetParameter</url-pattern>
</servlet-mapping> 
</web-app>

Display Hello World using Servlet and implementing Package

Step 1: Create HelloWorld.Java in Package Test

package test;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;


public class HelloWorld extends HttpServlet
{
 public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("");
        out.println("");
        out.println("Hello Servlet!");
        out.println("");
        out.println("");
        out.println("Hello World!");
        out.println("");
        out.println("");
    }
}

Step 2: Create Web.xml File in Ur Root Folder

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app>
<servlet>
      <servlet-name>HelloWorld</servlet-name>
      <servlet-class>test.HelloWorld</servlet-class>
</servlet>   
<servlet-mapping>
        <servlet-name>HelloWorld</servlet-name>
        <url-pattern>/HelloWorld</url-pattern>
</servlet-mapping> 
</web-app>

Saturday, January 28, 2012

Create a Form in HTML with two fields, minimum and maximum, write JavaScript to validate that only numeric value is entered in both, and the value entered in minimum is less than the value entered in maximum.

Create a Form in HTML with two fields, minimum and maximum, write JavaScript to validate that only numeric value is entered in both, and the value entered in minimum is less than the value entered in maximum.

Description:- Take two textboxes to accept two values from the user and check whether the values entered in both the textboxes are numeric or not and put validation on it that you can enter only numeric values. You can also check the that the field marked as maximum should have greater value as compared to the field marked as minimum if it is not so than put proper validation for it.

Hint: Key allowed in the textbox is 0-9, ‘.’.

<!--
 Q-3 Create a Form in HTML with two fields, minimum and  maximum, write JavaScript to validate that only numeric  
 value is entered in both, and the value  entered in minimum is less than the value entered in maximum

-->
<html>
 <head>
  <title>
  Session 3 - 3rd Program
  </title>
  <script type="text/javascript">
   
   function validate()
   {
    var min=myForm.txt_min.value;
    var max=myForm.txt_max.value;
    
    
    if(parseInt(min)==min && parseInt(max)==max)
    {  
     if(parseInt(max)<parseInt(min))
     { 
      alert("Sorry! Value of MAX must Be Greater");
     }
     else
     {
      alert(" Validated ");
     } 
    }
    else  
    {
     alert("Both Must b Numeric Value");
    }
  
   }

  </script>
 </head>
 
 <body>
  <form name="myForm"> 
   <table border="1" align="center" width="40%">

    <tr>
     <td align="center" colspan="2"><h3>
      Validate Min & Max Values
     </td>
    </tr>
    <tr> 
     <td align="center">
     <strong>Min : </strong><input type="text" name="txt_min" />
     </td>

     

     <td align="center">
     <strong>Max : </strong><input type="text" name="txt_max" />
     </td>
    <tr>
    <tr>
     <td align="center" colspan="2">
 
      <input type="button" value="Validate" onClick="validate();" />
     </td>

    </tr>
    
  </form>
  
 </body>
</html>

...::: Recent Updates :::...

Friday, June 1, 2012

Thursday, May 31, 2012

Wednesday, May 30, 2012

Monday, May 28, 2012

Sunday, May 27, 2012

Saturday, May 26, 2012

Display Hello World using Servlet and implementing Package

Saturday, January 28, 2012