Core Java

Mobile Connectivity

Mani — Sun, 28 Feb 2010 10:48:45 -0500

anybody please help me............
how to connect the mobile and localhost(tomcat server) in realtime.........

Tools and Methods

Mobile Connectivity

Mani — Sun, 28 Feb 2010 10:19:25 -0500

hi sir,
I am doing a project on Media streaming in mobile (ie.Streaming the video content to the blog)using Sun java Wireless Toolkit........

I designed mobile side application............
and I developed blog using localhost(Apache Tomcat web server)..........

I installed .jar file Nokia 5800 express music.......
I connected the laptop to the router & mobile to the same router.......
so then both laptop and mobile are connected via router(wifi)........
then I started the tomcat server in the laptop........
and I started my application in the mobile.........

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Tools and Methods

truth tables

zachsimpson — Mon, 22 Feb 2010 16:07:29 -0500

how do i construct truth tables in which i use the letters p and q for a AND or (&&), OR (||), AND (&),OR(|), XOR (^), and NOT (!)?
the statements when ran should return every possibilty for p and q. for instance- p-false q-false and p&&q-false. it should use the code System.out.printf
thanks for the help. Zach
abuzubair1999@yahoo.com

Tools and Methods

hashCode help

Alpdog14 — Fri, 19 Feb 2010 10:53:49 -0500

I am trying to implement a hashCode method to return the last few chars of a word or number inputted using my JUnit test. Here is my current method:

@Override
public int hashCode(String value){
	String test = value;
	int hash = 1;
	int len = test.length();
	System.out.println(len);
	for ( int i=0; i<len; i++ )
	      {
	      hash = 31 * hash + len;
	      }
	   return hash;
}

Ldap JMS testing through JMeter gives illegal state exception

ramendra — Thu, 18 Feb 2010 02:12:35 -0500

Hi,
My application has JMS implementation with LDAP as a JNDI provider.
I am providing information in following format in JMeter to do the point to point testing:
Queue Connection Factory = cn=;ou=;dc=;dc=;dc=;dc=

JNDI Name Request Queue = cn=;ou=;dc=;dc=;dc=;dc=

JNDI Name Receive Queue = cn=;ou=;dc=;dc=;dc=;dc=

JNDI Properties
---------------

java.naming.provider.url =

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Tools and Methods

Invoke EJB 1.1 through Web Services

nishi_hii — Wed, 17 Feb 2010 16:44:29 -0500

I want to know how to invoke remote method in EJB 1.1 through WebServices in OC4J server i.e (9.0.4). I am using Eclipse 3.5 and JDK 1.3.
Please help. It is very critical and urgent.

Any recommendation would be highly appreciable

Tools and Methods

Help with creating Pie Graph

spatel14 — Sun, 14 Feb 2010 14:00:09 -0500

Hey guys, so I'm in my first Java class right now and I need some help with my first assignment. Here is the link to access the .pdf for the class:

http://www.4shared.com/file/222110044/ba9465ca/1483875481021.html

Now, the first 2 class were easy to understand and I was able to make the bar graph just fine. However, with the final class, I'm having trouble understanding how to implement predegrees.. I don't think the homework presents it clearly and the university discussion board doesn't seem to be any help. Can anyone help me out with this?

Thanks

Core Java

Sessions - what went wrong?

tangara — Sat, 13 Feb 2010 05:54:17 -0500

Hi,

I have this application in which I am using session to trak different types of user going to different pages.

There are 2 kinds of users. The admin, if log in successful, will go to Update.jsp. If it is member, they will be redirected to Addmember.jsp. If they are not in the database, they will be redirected to login again.

<?php
@page contentType="text/html" pageEncoding="UTF-8"
?>


        <%  Connection conn = null;

            PreparedStatement ps = null;

            ResultSet rs = null;

            Statement stmt = null;
            try { 

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Core Java



JProfiler6 monitor tomcat6.0 for memory leak
Dongnan — Wed, 10 Feb 2010 14:14:06 -0500
Hello,

I am tring to work out the memory leak of my Web Application running on the local server. I have been told that jprofiler is a good tool for monitoring memory. I have dowloaded jprofiler6, but I dont know how to config the setting. 
what i have done is:

1.from the Quickstart window->An application server, locally or remotely

2.follow the wizard step by step

1)choose application server Apache Tomcat 6.x

2)application is located "on this computer"

3) Chose JVM vendor

4) wait for a connection from the JProfiler GUI 

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Core Java



Who can tell me how make an image background for jframe
jiang5495 — Mon, 08 Feb 2010 09:54:05 -0500
Who can tell me how make an image background for jframe

by using netbeans?
using netbeans not other!
Core Java



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



Lauching browser from java application
srinivasulu.m — Sun, 07 Feb 2010 03:32:06 -0500
We can use new Desktop API in Java SE 6 to lauch default application to open, edit the file.

Please refer:

http://java.sun.com/javase/6/docs/api/java/awt/Desktop.html

http://java.sun.com/developer/technicalArticles/J2SE/Desktop/javase6/des...
This help us to launch the html file in the default browser quickly instead of the getting the browser path and lauching it using the RunTime exec()'s method.
Sample Program:

import java.awt.Desktop;

import java.io.File;

import java.io.IOException;

public class Launch

{

    public static void main(String[] args) throws IOException 

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Core Java



Help needed in Excel download
tester — Sat, 06 Feb 2010 06:36:23 -0500
Hi all,

Am trying to download an excel kept in the server by java servlet. on click of download button, download dialog box appears and on clicking on save the file gets downloaded and saved successfully. Everything in this is perfect. But on click of open button i want my excel to be opened in separate excel instead of opening the excel as embedded in the browser itself. Any guidelines would help me a lot.. here is the code.. am passing the file name from jsp and getting the name in this servlet. 

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Enterprise Java



Java FTP Client help
BryCry — Thu, 04 Feb 2010 20:14:31 -0500
Hey guys,
I'm kinda new to Java.

I've been trying to get some stuff off of the ground for 20 weeks now (studying software engineering) and bit by bit the pieces are coming together.
But now, I wanted to create a simple Java FTP client GUI for my family. They are doing some sort of 'sport' which they photographer allot about, and I wanted to give them a 1 direction only way to put those photos on a server I made.
Well, as far as connecting to the FTP server I got. That worked.

But that's all I got. 

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Community Discussion



java.lang.IllegalArgumentException: Cookie name "My ice cream" is a reserved token
tangara — Thu, 04 Feb 2010 09:07:47 -0500
I'm experimenting with cookies.  I created a html form where there is an input value="my ice cream".
When I run it, it's supposed to display in a servlet or jsp also can the "my ice cream" and the cookie id.
But, netbean ide is throwing me a java.lang.IllegalArgumentException Cookie name "My ice cream" is a reserved token.
What went wrong and how to rectify it to make the servlet display the words separtely.  The funny thing is that if I joined the words, there'd no problem at all.
Hope to have some insight into this problem and suggestion to correct the codes.
Many thanks.
Core Java



How to print values in pre defined reciept
manukhullar — Wed, 03 Feb 2010 11:21:30 -0500
Hi,
In my project i have to print some values in a pre defined receipt.

can anyone tell me how to do this...
Example:
       Employee Receipt-

Name:

Age:

Address:

Designation:

Salary:
the above information will be printed on a peice of paper. what i have to do is, to print the values in the right place....
              Employee Receipt-
Name: XYZ

Age: XYZ

Address:XYZ

Designation:XYZ

Salary:XYZ
How can i do this in JAVA. plz repl

Thanx in advance!!!
Enterprise Java



Using session to authenticate different types of users
tangara — Fri, 29 Jan 2010 01:32:24 -0500
Hi,
I'd like to know how I can incorporate cookie/session into my Java servlet page to remember and authenticate different users.
I have a login page done in html and a servlet page to compare the names and passwords in a Msaccess table.  
So, I hope someone can help me regarding how to incorporate the session portion for different types of users. Also, do I need to create a different login page for different type of user or just use one will do.  In that case, do I put in SELECT statement for different table.  Hope to have some advice here also.
Thanks. 

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Core Java



JSP - display cookies not working
tangara — Wed, 27 Jan 2010 00:04:12 -0500


Hi, 
I've been trying to get the jsp to display a table to show the name enter from a form. 
However, it doesn't show the table which will display the Name, Value and Comments. 
Hope someone can advise me where have I gone wrong with my codes. It's quite messy because I'm tyring to follow examples from internet.  So please be patient with me.  Million Thanks. 
<?php
@ page language="java" 
?>


<?php
            String cookieName = "username";
            Cookie cookies[] = request.getCookies();
            Cookie c = null;
?>
 

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Core Java



populating the data from the database on the JPanel
merosansar — Mon, 25 Jan 2010 10:39:42 -0500
I hava loaded the rows of data from the database in the list.Now I want to display the data on JPanel which is loaded inside the parent JPanel on button click.

Any help will be appreciated.
Enterprise Java



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 

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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



java codes
aarthimanikandan — Fri, 22 Jan 2010 06:24:18 -0500
i need java coding for storing image and retrieving the image from the database(oracle) using the histogram of that image plz give a model coding for this kind
Core Java



how to call up reverse value using for statment
tangara — Sun, 17 Jan 2010 22:01:14 -0500
Hi,
Could someone advise me how to do the reverse values in this code? 300, 200, 100.  Think I'm really hopeless when come to programming :-(
 for (intIndex = 0; intIndex > ayrElements.length ;intIndex--)// this is the part that I'm stuck.


  function inspectCheckBoxes(){    
   var aryElements = new Array(); //Declare an Array variable

   var intValue = new Number(0); //Declare a Number variable

   var intIndex  = new Number(0); //Declare a Number variable 

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Core Java



Betting Server In Core Java ?
melhor.mrudul — Wed, 13 Jan 2010 03:57:29 -0500
Hello J-Gurus,

             I am newbie to java... I want to know whether I can design a betting server with core java or not...

Or which would be the best java technology to design this architecture.
helpful answer will be appreciated ...

Thanks In advance...Mrudul
Community Discussion



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();
 

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Core Java