Java Programming Concepts

How to create chart based on ResultSet

reea — Fri, 12 Feb 2010 15:25:19 -0500

Hello,

Can anyone tell me how can I store results from a database (more than 1 column) so that later the data can be passed to a method that creates a chart?

Thanks

Markup Interface

kb — Mon, 08 Feb 2010 07:04:30 -0500

Why Serializable interface is markup interface. What exactly do this interface and how. Can you create your own markup interface for serialzing purpose. How it will behave. I know markup interface does not have any method, exactly what is the use of markup interface. and jvm how to treat this type of markup interface.

Core Java

Question about using Threads

afs — Thu, 04 Feb 2010 21:33:32 -0500

I am trying to write a script in Java but need some help. I studied threads long time ago and have forgotten about them. So I need some help. I am basically trying to drag an object present on a webpage to a new location on the same page. While I am dragging this object I want to take screenshots of this drag event.

Now I have a method drag() which does the drag and drop. Another method captureScreenShot() that captures screen shots at a time.

Read more ...

Java Persistence Experts Teaches JPA 2.0 at GIDS 2010

satpal — Mon, 25 Jan 2010 06:26:59 -0500

Java Persistence Experts Teaches JPA 2.0 at GIDS 2010
Great Indian Developer Summit 2010 – Gold Standard for India's IT Professional Ecosystem

Read more ...

Tools and Methods

Nosh Petigara on Big Table, SimpleDB, CouchDB, MongoDB and more at GIDS 2010

satpal — Mon, 25 Jan 2010 06:23:52 -0500

Nosh Petigara on Big Table, SimpleDB, CouchDB, MongoDB and more at GIDS 2010
Great Indian Developer Summit 2010 – Gold Standard for India's IT Professional Ecosystem

Read more ...

Tools and Methods

import org.apache.struts.action.ActionServlet

gagabdeka007 — Thu, 21 Jan 2010 21:04:43 -0500

Hi, Can you plz tell me how and where i can import org.apache.struts.action.ActionServlet class and how can i set the class path for it in weblogic application server (or tomcat server)

My weblogic server is installed at D:\bea\wlserver6.1.

Tools and Methods

import org.apache.struts.action.ActionServlet

gagabdeka007 — Thu, 21 Jan 2010 16:26:45 -0500

Hi, I want to compile the program

import javax.servlet.http.*;
import org.apache.struts.action.*;
import java.io.IOException;
import javax.servlet.ServletException;

public class MyAction extends Action
{
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
{
MyActionForm actionform=(MyActionForm)form;
request.setAttribute("name",actionform.getName());
request.setAttribute("address",actionform.getAddress());
return (mapping.findForward("WelcomeUser"));
}

Read more ...

Tools and Methods

Developing RIA apps using Java

stevejones — Thu, 21 Jan 2010 12:06:47 -0500

I'd like to know can we developing RIA Apps (Rich Internet Applications) using Java related web technologies?

Please let me know.

Thanks...

Problem with Japanese Encoding

sendhilpk — Tue, 12 Jan 2010 02:00:58 -0500

Hi,
I am new to ja encoding formats in java. I have a code where I want to save ja lang text in a text file (.vcs - calander attachment). But I get junk characters instead of ja lang texts. I tried a small code snippet which I am not able to get it work.

String st = "japanese lang text here";
File fl1;
fl1 = new File("C:\\test.txt");
FileOutputStream fos1 = new FileOutputStream(fl1);
fos1.write(st.getBytes("SJIS"));
fos1.close();

XML manipulation using Java and XSL

xmlmanip — Mon, 11 Jan 2010 04:46:06 -0500

There is a tool for XML manipulation using Java and XSL. Please visit the below site http://xmlmanipulation.orgfree.com/xmlmanip.html Thanks,

XML manipulation using XML and Java

xmlmanip — Mon, 11 Jan 2010 04:43:59 -0500

There is a tool for XML manipulation using Java and XSL. Please visit the below site http://xmlmanipulation.orgfree.com/xmlmanip.html Thanks,

But....

Thu, 10 Dec 2009 09:59:46 -0500

This encourages God objects, full of methods for programming everything. An alternative is Money AddMoney(Money a, Money b, FX fx). This puts all the conversion responsibility on a function rather than a class. You can add money together without needing a class instance. Do this throughout your codebase and you no longer have to worry about object life times or being swamped with references / singletons.

JW Talkback

Access 16 Bit DLLs using java?

niobie — Thu, 03 Dec 2009 09:43:19 -0500

Hi,

I have been given the task to upgrade an existing 16 Bit Desktop application.
The source code is in GFA Basic. I wanted to know if there is a possibility to access the functions inside these 16 Bit Dlls via jna/jni(I am not sure about the difference between the two).
Your help would be highly appreciated.
Thanks.

Tools and Methods

Error message "no report config file! " while deploying RAQ Report

freezea — Sat, 28 Nov 2009 20:27:47 -0500

While using RAQ Report to develop web report and deploy it to web server, we often confront the error message “no report config file” when we preview the report, and make it impossible to preview. The error message in the console is:
javax.servlet.ServletException: No report config file! at
com.runqian.report4.view.ReportServlet.loadConfig(Unknown Source:75) at
com.runqian.report4.view.ReportServlet.reloadConfig(Unknown Source:823) at com.runqian.report4.tag.HtmlTag.doStartTag(Unknown Source:20)

Read more ...

3 axis data capture in Jpanel

ROTNEVNI — Thu, 26 Nov 2009 11:37:00 -0500

I am trying to figure out how to receive serial 8bit data from a sensor connected to a comport. I would like for the data to show up in my GUI panel for further analysis, i.e. realtime graphing and realtime signal capture. I am using NetBeans IDE 6.7.1 and need some help with "TODO Handling Code"

Thanks,
ROTNEVNI

jdbc

reshma raghu — Sat, 21 Nov 2009 02:54:30 -0500

i am having problems connecting DB2 database to my Java application using NetBeans.
Here is the Code:

package app;
import java.sql.*;
import java.lang.*;
import java.io.*;
import COM.ibm.db2.jdbc.app.*;
public class Main {

public static void main(String args[]) throws IOException
{
try
{
//Loads Type 2 Driver
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");

}
catch (ClassNotFoundException e)
{
System.err.println("Could not load DB2 driver! \n");
System.err.println(e.getMessage());
System.exit(1);
}

Read more ...

Tools and Methods

RE:Rss--Search Engine For Rss Feeds.

Mallepula Narayana — Wed, 18 Nov 2009 13:50:34 -0500

Hi All, I have news RssFeed URL,by using Rss Reader I am able to displaying all news articles of that News RssFeed URL.But my problems is I dont want display all news articles, I want to display selected news articles based on keywords,I mean if news RssFeed consists of sports,education,entertainment,technology etc from that keywords as sports,education, articles I want to display. Thanks in advance. Regards, Mallepula

Enterprise Java

How to learn Designing in Java

sreedhar37 — Mon, 02 Nov 2009 04:39:18 -0500

Hi

I have been a java programmer for few years now. I have learnt java progamming concepts and apis and few design patterns. Now i would like to learn how to be very good at designing java applications on my own. Even thoough i know few design patterns, i am unable to start designing applications. For example, what are the things that i should learn to decide when should the class should be abstract or by looking at a code i should be able to tell that this class should actually be an interface and should have sub classes etc.

Could you please guide me to learn things like these.

Exceptional handling

nagworks12 — Sun, 25 Oct 2009 22:16:03 -0400

Hi
if we get any exceptioon in java code full stack trace will come
which explain what is the root cause of exception.

I want to know how it was implemented,how we get all statements
can someone explaing briefly.

Core Java

I agree

Sat, 24 Oct 2009 11:06:06 -0400
As a developper I must agree that I hate having to relearn syntax and tool/method names for everything I already know. Usually the new language will not bring any advantages unless it is a domain specific language that addresses the problems of the project (concurrency, portability, ...).
JW Talkback

a little help for html parser

fighterJJ — Sun, 11 Oct 2009 16:47:18 -0400

Hi dear,

So, i need help to how can i open this website http://hyle.appspot.com/palinsesto/rai1 and extract on my JVM the text about time 21:00 and text followed ?? (so, i have to extract text from html tags.)

I know the existing extending class public class HTMLParserCallback extends HTMLEditorKit.ParserCallback but i cant' understand how implents it for this my excercise.

is possible my method will be it ?

import javax.swing.text.MutableAttributeSet;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLEditorKit;

Read more ...

joshnguyen

Tue, 06 Oct 2009 21:29:06 -0400
Lần 1: [url=http://www.aaa-ch.net/]風俗[/url] [url=http://www.aaa-ch.net/]デリヘル[/url] [url=http://www.aaa-ch.net/m/]風俗[/url] [url=http://www.aaa-ch.net/area.php?category=2000]デリヘル風俗[/url] [url=http://www.akibain.com/]エロゲー[/url] [url=http://www.pure-soapland.com/i/]ソープランド[/url] [url=http://www.pure-soapland.com/i/]吉原ソープランド[/url] [url=http://chuh.jp/]出会い[/url] [url=http://pc.chuh.jp/]出会い[/url] [url=http://www.erogle.net/m/]デリヘル[/url] [url=http://www.pure-soapland.com/chiiki/susukino/]すすきのソープラ

Read more ...
JW Talkback

java.lang.IllegalStateException: strict servlet API : cannot call getWriter after getOutputStream()

puneet21 — Mon, 28 Sep 2009 02:44:07 -0400

Hi,
My servlet is as follows. It just opens a dialog on the basis of the filetype. The filetype can be html, xml, csv or pdf.

<%@ page contentType="text/xml; charset=UTF-8"
<%
JspHelper jspHelper = new JspHelper();

FlexibleReportJobJspBean jspBean = new FlexibleReportJobJspBean();
FlexibleReportJob reportBean = jspBean.getFlexReportConvBean();
try
{
String reportCode = request.getParameter("reportCd");

Read more ...

Enterprise Java

How to judge the commond called by Runtime executed successfully or not

apachemaven — Mon, 28 Sep 2009 00:19:17 -0400

I use java.lang.Runtime to call some standalone executeable commond (which will open another application do some operation use a comond line manner) in my application,however I can not judge whether the commond is executed or whether it is executed successfully. And someone tell me I should define the standard for judge the success and failture. But I have no idea.

Read more ...

Core Java

SCJP details with free SCJP dumps

kumarfair30 — Fri, 18 Sep 2009 10:07:27 -0400

>SCJP details---just click here

Core Java