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Try this:


<servlet>
<servlet-name>servletName</servlet-name>
<jsp-file>/yyy.jsp</jsp-file>
</servlet>

<servlet-mapping>
<servlet-name>servletName</servlet-name>

Swing should help you with what you need to achieve. Look at JFrame and IO classes.

Use servlet-mapping in your web.xml.

Servlet example:


<servlet>
<servlet-name>YourServlet</servlet-name>
<servlet-class>YourServletClass</servlet-class>
</servlet>

If your doing presentation layer only you should play around with css and form layouts. For the back end and processing of records you should get familiar with databases and MVC pattern.

Use File listFiles() and a comparator to sort your array by last mod date.
Apache Commons IO package has LastModifiedFileComparator that you can also use.

listFiles() example to help get you in...

Your question is related to JavaScript not Java. Try the JavaScript function toString(16).

Here is something that should give you direction:


function dec2Hex(i)
{
var myValue =...

Sounds like something you would want to do with AJAX where you can use XML and JSON. Look at Open Java Trading System (OJTS) to provide additional guidance.

Your using session object so you need to change request to session in your JSP and it should work. I would refrain from using Scriptlets as they are outdated technology in JSP.
See below example...

Here is something with MySQL that should guide you in the right direction:


select city, state, '=', group_concat(zip SEPARATOR ' ') as zips, ',' from Table1 group by city into outfile...

Several options if you have quote issues would be to create a class to escape the values or create a custom tag if needed or use EL.

EL example:
${fn:replace(param.YourFieldName, "\"", "\\\"")}
...

Here is one way to do it where you can read your file and count any opening and closing div tags.



import java.util.Scanner;
import java.io.*;

public class DivCount {
public static...

Use EL and not scriptlet for fetching parameters in JSP.

Form example:


<select name="StartTimes" id="StartTimes" onblur="CheckTimes('StartTimes','EndTimes')">
<script...

Use an outer join in your SQL.

Its an Up Key event on the frame that can be used for example in JFrame.

Why are you not using KeyEvent.VK_UP in that part of your program?

Your code should not compile due to try block bracket issue. You need to eliminate the bracket before the in.close() part.

It looks like you have other issues and maybe you are not showing all...

Probably because your JAVA_HOME environment variable not set, or set incorrectly.
It should point to your java directory.

Eliminate scriptlet because that is outdated and use JSTL/EL in your presentation layer.

You should create a list to fetch from database and run it through your servlet then get the saved value...

Check the filter API. Look at the Filter, FilterChain, and FilterConfig interfaces.

What is the Exception message you are getting?
Are you writing directly (unbuffered) to a FileWriter?

Create session with HttpSession object and then write to file.
View below to get you started:



HttpSession session = request.getSession();
session.setAttribute("yourSessionData",...

There is no native member variable or field in the Java. You can access Java object fields from native code, or you can associate native language objects with Java objects by various techniques.
...

Both are good Collection classes. HashTable is synchronized where it can be used concurrently by multiple processes/threads without need for synchronization outside of the object. HashMap is not and...

Why spaces in your url and what message do you get?
I assume you set classpath with your servlet-api.jar location.

You should use a Java XML library to convert the collection to an InputStream.
From there you can use JSTL to output in JSP.