How to validation of textbox in Core Java(Desktop Application)?

I am developing billing software in Core Java (Desktop Application). I want to know how to do validation of null values of textbox. and validation of other components in Core Java
(Same as we use javascript in JSP, what do we use in Core Java?)

Stop that.
If you post to forum, people answer to forum.....how else will other people gain any information?

Similar Messages

How to start/stop/restart a java desktop application from remote machine

Hi,
I want to know is there a way in java where i can start/stop/restart a java desktop application running on a remote machine through another java desktop application?
For e.g i have an Admin console which monitors its clients based on socket communication, all of them are java desktop applications. I want to also give start/stop remote clients through my Admin console.
I am thinking in terms of windows system service which can start/restart/stop my clients on request of Admin console, but how can i call this system service remotely?
How can i do it?

I got it. its about connection...

Questions on deploying Java desktop applications

Hello,
I have searched the forums and been unable to find the information I need. I am not sure this is the appropriate forum to post at but had to start somewhere!
I have a Java desktop application which has only been used internally at my organization for R&D. We are now working with our legal folks on setting up various licensing options. The funding organization today said that they wanted the software set up such that deploying it externally would have behaviors such as:
* preventing one CD being used to install on multiple machines,
* preventing someone from copying the installed software from one machine to another,
* have a way for the software to "expire" after a set amount of time.
I have never had to deploy software externally before (nor does it seem has anyone else at my organization - we do science R&D) and am at a loss as to how to best do this. I have googled around a bit but not found any solutions. Has anyone here done this and could perhaps give me some pointers?
Much Thanks,
Keri

kgoorley wrote: Hello,
I have searched the forums and been unable to find the information I need. I am not sure this is the appropriate forum to post at but had to start somewhere!
Given you new not only to deployment, but also
posting to these forums, I will take the opportunity
to point out that I let this post be for a couple of
days since in had no Dukes assigned. To my
eye, dukes indicate how important a question is
to whoever asked it, and I do not generally have
time to answer questions that are not important.
You can add dukes to a thread at any time.
kgoorley wrote: ..licensing options. ..
* preventing one CD being used to install on multiple machines,
* preventing someone from copying the installed software from one machine to another,
* have a way for the software to "expire" after a set amount of time.
Web start apps. are usually deployed directly off
a server/internet site. Although deployment off CD
is theoretically possible, it is uncommon.
The basic answer to all your questions as asked is 'no'.
However, if the legal people can take a slightly different
line, and that server/site has some 'active' element to it
(e.g. it is generated using servlets), there might be other
options worth considering.
The basic approach would be not to sell licenses
per machine, but per 'use', in the sense that if
I were to sell you a license, it would be for 'nn users',
rather than 'nn machines'. This means that if you
had a license for 'two' users (let's call them Bob
and Harriet), both Bob and Harriet could use any
PC in the organization to use the software,
but once they were both logged in, no further
users of the software would be allowed.
The way to achieve this is to have the application
'phone home' to the server and tell it the
username(/password). Every 2-3 minutes,
the app. should get back to the server and
confirm it is 'still running..'. If the app. cannot
reach the server, it reports a problem to the
user, and exits.
If the server does not get a 'still running' confirmation
in a time longer than that few minutes, it assumes
the app. is off-screen, and frees that 'licence slot'.
The reason to keep letting the server know it is
there, is that if Harriet were to be logged in, and
Bob accidentally trips over the power cord and
drops Harriet's computer in a screaming heap,
her app. will never have the chance to 'log out'
and inform the server to free the slot.
As such, it is important to allow her to log-in again in
'a few minutes' (which is probably about the amount
of time it will take her machine to reboot, and chide
Bob for his oafish carelessness).
Using this system, the first & second requirements
above become redundant - as it is not the number of
PC's that we care about - just the number of users.
The third requirement could easily be handled on
the server-side, checking licenses as users
log-in, and confirming that license is still valid.
Edited by: AndrewThompson64 on Sep 27, 2007 7:30 AM

Netbeans Java Desktop Application Problem

Hi
I have build a java desktop application via netbeans and it creates a jnlp file to execute this applets however in my project when i press a button on an applet it opens another applet and send some parameter via html file how can i do that in desktop application because it doesnt have html file it only has jnlp file ?
Thanks

I guess I didnt make myself clear enough,I dont want to use another applet's public methods I want to execute it
Lets make a scenario
assume that I have an applet a and applet b
on applet a there is a button called open applet b and when somebody press this button applet b will be opened
Before I was doing that like this
URL page = new URL("http://www.xxx.edu.tr/~team5/nps/build/giris.html");
getAppletContext().showDocument(page,"_self");but now I made the project netbeans desktop application so I dont have any html file I only have jnlp and jar files
so what should I do to maintain opening an applet from another applet?
Thanks

Calling a soap web service from a java desktop application

Hi,
Does anyone know how to call a soap web service from a java desktop application? I've seen examples using Apache Axis, but it sounds like Axis needs to run on a web server and we are trying to avoid that. My initial thought was that, "of course we need a web server", but I'm wondering if there is a way to do this without a web server.
Any help is greatly appreciated.
thank you,
Julie

If you are the consumer you don't need any web server. The web server is only needed in the provider end.
In java 6 there is a built in framework to call web services without the need of third parties (such as apache axis)
take a look at:
https://jax-ws.dev.java.net/guide/Developing_client_application_with_locally_packaged_WSDL.html
http://java.sun.com/webservices/technologies/index.jsp
For the provider end there is also a built in http server to expose web service via HTTP without the need to
use any external web server.
take a look at:
http://java.sun.com/javase/6/docs/api/javax/xml/ws/Endpoint.html

Java desktop application run problem

Hi.
I have designed java desktop application which includes some libraries (XMLparserV2.jar, Ojdbc6.jar,xdb.jar, Orai18n-mapping,jar) with XML ini file.
Then I have done deploy to jar. After it I relocated jar file and XML ini files to separate directory and ran javaw -jar myjarfile.jar. I can't see anything.
Where I can see any errors ?
Thanks for reply in advance.
Andrii.

Try running java -jar myjarfile.jar from the command line and see if you get any errors showing up (probably missing classes in your path)

Error code:-2147467259 Error code name:failed Java desktop application

Hi guys,
I'm trying to run
Java_JRC_Desktop_View_Report_and_set_database_logon downloaded from this link:
http://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/d0d6f979-3e11-2c10-35a8-ac93994a30ed
but at runtime my java desktop application throws this Exception:
com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: org/apache/log4j/Logger---- Error code:-2147467259 Error code name:failed
From what depends?
thx all.

Hi,
     I am trying to run a java code to export .rtf file to .pdf format. Below is the code
*String reportname = "D:\\multiLingual.rpt";;*
*String exportfilename ="D:\\multiLingual.pdf";*
*//Open report.*
*ReportClientDocument reportClientDoc = new ReportClientDocument();*
*reportClientDoc.open(reportname, 0);*
*//NOTE: If parameters or database login credentials are required, they need to be set before.*
*//calling the export() method of the PrintOutputController.*
*//Export report and obtain an input stream that can be written to disk.*
*//See the Java Reporting Component Developer's Guide for more information on the supported export format enumerations*
*//possible with the JRC.*
*ByteArrayInputStream byteArrayInputStream = (ByteArrayInputStream)reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);*
*//Release report.*
*reportClientDoc.close();*
*//Use the Java I/O libraries to write the exported content to the file system.*
*byte byteArray[] = new byte[byteArrayInputStream.available()];*
*//Create a new file that will contain the exported result.*
*File file = new File(exportfilename);*
*FileOutputStream fileOutputStream = new FileOutputStream(file);*
*ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(byteArrayInputStream.available());*
*int x = byteArrayInputStream.read(byteArray, 0, byteArrayInputStream.available());*
*byteArrayOutputStream.write(byteArray, 0, x);*
*byteArrayOutputStream.writeTo(fileOutputStream);*
*//Close streams.*
*byteArrayInputStream.close();*
*byteArrayOutputStream.close();*
*fileOutputStream.close();*
I am running it through eclipse as a standalone with all the required jar files in the buildpath. However when i run it gives following error in console.
*com.crystaldecisions.sdk.occa.report.lib.ReportSDKException: An error occured while exporting the report---- Error* *code:-2147467259 Error code name:failed*
*     at com.crystaldecisions.sdk.occa.report.application.PrintOutputController.export(Unknown Source)*
*     at com.crystaldecisions.sdk.occa.report.application.PrintOutputController.export(Unknown Source)*
*     at com.crystaldecisions.reports.sdk.PrintOutputController.export(SourceFile:54)*
*     at test.main(test.java:34)*
Thanks in advance
Abhijeet
Edited by: Abhijeet D on Jul 7, 2010 5:10 PM
Edited by: Abhijeet D on Jul 7, 2010 5:24 PM

Do you develop Java Desktop Applications based on netbeans RCP?

do you develop Java Desktop Applications based on netbeans RCP?
http://nextbridge.net/netbeans/ ,a definitive source for netbeans plugins information

I don't. For the moment it seems too complicated. I follow the MVC pattern when the application is big and try to look at the code of successful projects.

Open source java desktop applications

Hi all,
Can someone direct me to a simple open sourced java desktop application (not from java tutorial).
I had no luck finding one myself. It seems to me there isn't many out there. I found open workbench but thats too complex for a beginner like me.
regards,
Sebastian

I had no luck finding one myself. It seems to me
there isn't many out there. You mean like Eclipse? I took me 1 ms to think of that one. I'm sure there are many, MANY more... Did you try Google?

How to create the digital clock in java swing application ?

I want to create the running digital clock in my java swing application. Can someone throw some light on this how to do this ? Or If someone has done it then can someone pl. paste the code ?
Thanks.

hi prah_Rich,
I have created a digital clock you can use. You will most likely have to change some things to use it in another app although that shouldn't be too hard. A least it can give you some ideas on how to create one of your own. There are three classes.One that creates the numbers. a gui class and frame class.
cheers:)
Hex45
import java.awt.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
public class DigitalClock extends Panel{
          BasicStroke stroke = new BasicStroke(4,BasicStroke.CAP_ROUND,
                                           BasicStroke.JOIN_BEVEL);
          String hour1, hour2;
          String minute1, minute2;
          String second1, second2;
          String mill1, mill2, mill3;
          int hr1, hr2;
          int min1, min2;
          int sec1, sec2;
          int mll1, mll2,mll3;
    public void update(Graphics g){
         paint(g);
     public void paint(Graphics g){
          Graphics2D g2D = (Graphics2D)g;
          DigitalNumber num = new DigitalNumber(10,10,20,Color.cyan,Color.black);
          GregorianCalendar c = new GregorianCalendar();
          String hour = String.valueOf(c.get(Calendar.HOUR));
          String minute = String.valueOf(c.get(Calendar.MINUTE));
          String second = String.valueOf(c.get(Calendar.SECOND));
          String milliSecond = String.valueOf(c.get(Calendar.MILLISECOND));
          if(hour.length()==2){
               hour1 = hour.substring(0,1);
               hour2 = hour.substring(1,2);
          }else{
               hour1 = "0";
               hour2 = hour.substring(0,1);
          if(minute.length()==2){
               minute1 = minute.substring(0,1);
               minute2 = minute.substring(1,2);
          }else{
               minute1 = "0";
               minute2 = minute.substring(0,1);
          if(second.length()==2){
               second1 = second.substring(0,1);
               second2 = second.substring(1,2);
          }else{
               second1 = "0";
               second2 = second.substring(0,1);
          if(milliSecond.length()==3){
               mill1 = milliSecond.substring(0,1);
               mill2 = milliSecond.substring(1,2);
               mill3 = milliSecond.substring(2,3);
          }else if(milliSecond.length()==2){
               mill1 = "0";
               mill2 = milliSecond.substring(0,1);
               mill3 = milliSecond.substring(1,2);
          }else{
               mill1 = "0";
               mill2 = "0";
               mill3 = milliSecond.substring(0,1);
          hr1 = Integer.parseInt(hour1);
          hr2 = Integer.parseInt(hour2);
          min1 = Integer.parseInt(minute1);
          min2 = Integer.parseInt(minute2);
          sec1 = Integer.parseInt(second1);
          sec2 = Integer.parseInt(second2);
          mll1 = Integer.parseInt(mill1);
          mll2 = Integer.parseInt(mill2);
          g2D.setStroke(stroke);
          g2D.setPaint(Color.cyan);
          num.setSpacing(true,8);
          num.setSpacing(true,8);
          if(hr1==0&hr2==0){
               num.drawNumber(1,g2D);
               num.setLocation(40,10);
               num.drawNumber(2,g2D);
          else{
               if(!(hr1 == 0)){
                    num.drawNumber(hr1,g2D);
               num.setLocation(40,10);
               num.drawNumber(hr2,g2D);
          num.setLocation(70,10);
          num.drawNumber(DigitalNumber.DOTS,g2D);
          num.setLocation(100,10);
          num.drawNumber(min1,g2D);
          num.setLocation(130,10);
          num.drawNumber(min2,g2D);
          num.setLocation(160,10);
          num.drawNumber(DigitalNumber.DOTS,g2D);
          num.setLocation(190,10);
          num.drawNumber(sec1,g2D);
          num.setLocation(220,10);
          num.drawNumber(sec2,g2D);
          /*num.setLocation(250,10);
          num.drawNumber(DigitalNumber.DOTS,g2D);
          num.setLocation(280,10);
          num.drawNumber(mll1,g2D);
          num.setLocation(310,10);
          num.drawNumber(mll2,g2D);
          g2D.setPaint(Color.cyan);
          if((c.get(Calendar.AM_PM))==Calendar.AM){
               g2D.drawString("AM",260,20);
          }else{
               g2D.drawString("PM",260,20);
     String dayOfweek = "";
     switch(c.get(Calendar.DAY_OF_WEEK)){
          case(Calendar.SUNDAY):
               dayOfweek = "Sunday, ";
               break;
          case(Calendar.MONDAY):
               dayOfweek = "Monday, ";
               break;
          case(Calendar.TUESDAY):
               dayOfweek = "Tuesday, ";
               break;
          case(Calendar.WEDNESDAY):
               dayOfweek = "Wednesday, ";
               break;
          case(Calendar.THURSDAY):
               dayOfweek = "Thursday, ";
               break;
          case(Calendar.FRIDAY):
               dayOfweek = "Friday, ";
               break;
          case(Calendar.SATURDAY):
               dayOfweek = "Saturday, ";
               break;
     String month = "";
     switch(c.get(Calendar.MONTH)){
          case(Calendar.JANUARY):
               month = "January ";
               break;
          case(Calendar.FEBRUARY):
               month = "February ";
               break;
          case(Calendar.MARCH):
               month = "March ";
               break;
          case(Calendar.APRIL):
               month = "April ";
               break;
          case(Calendar.MAY):
               month = "May ";
               break;
          case(Calendar.JUNE):
               month = "June ";
               break;
          case(Calendar.JULY):
               month = "July ";
               break;
          case(Calendar.AUGUST):
               month = "August ";
               break;
          case(Calendar.SEPTEMBER):
               month = "September ";
               break;
          case(Calendar.OCTOBER):
               month = "October ";
               break;
          case(Calendar.NOVEMBER):
               month = "November ";
               break;
          case(Calendar.DECEMBER):
               month = "December ";
               break;
     int day = c.get(Calendar.DAY_OF_MONTH);
     int year = c.get(Calendar.YEAR);
     Font font = new Font("serif",Font.PLAIN,24);
     g2D.setFont(font);
     g2D.drawString(dayOfweek+month+day+", "+year,10,80);
     public static void main(String args[]){
          AppFrame aframe = new AppFrame("Digital Clock");
          Container cpane = aframe.getContentPane();
          final DigitalClock dc = new DigitalClock();
          dc.setBackground(Color.black);
          cpane.add(dc,BorderLayout.CENTER);
          aframe.setSize(310,120);
          aframe.setVisible(true);
          class Task extends TimerTask {
             public void run() {
                  dc.repaint();
          java.util.Timer timer = new java.util.Timer();
         timer.schedule(new Task(),0L,250L);
class DigitalNumber {
     private float x=0;
     private float y=0;
     private float size=5;
     private int number;
     private Shape s;
     private float space = 0;
     public static final int DOTS = 10;
     private Color on,off;
     DigitalNumber(){
          this(0f,0f,5f,Color.cyan,Color.black);
     DigitalNumber(float x,float y, float size,Color on,Color off){
          this.x = x;
          this.y = y;
          this.size = size;
          this.on = on;
          this.off = off;
     public void drawNumber(int number,Graphics2D g){
          int flag = 0;
          switch(number){
               case(0):
                    flag = 125;
                    break;
               case(1):
                    flag = 96;
                    break;
               case(2):
                    flag = 55;
                    break;
               case(3):
                    flag = 103;
                    break;
               case(4):
                    flag = 106;
                    break;
               case(5):
                    flag = 79;
                    break;
               case(6):
                    flag = 94;
                    break;
               case(7):
                    flag = 97;
                    break;
               case(8):
                    flag = 127;
                    break;
               case(9):
                    flag = 107;
                    break;
               case(DOTS):
                    GeneralPath path = new GeneralPath();
                    path.moveTo(x+(size/2),y+(size/2)-1);
                    path.lineTo(x+(size/2),y+(size/2)+1);
                    path.moveTo(x+(size/2),y+(size/2)+size-1);
                    path.lineTo(x+(size/2),y+(size/2)+size+1);
                    g.setPaint(on);
                    g.draw(path);
                    return;
          //Top
          if((flag & 1) == 1){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath Top = new GeneralPath();
          Top.moveTo(x + space, y);
          Top.lineTo(x + size - space, y);
          g.draw(Top);
          //Middle
          if((flag & 2) == 2){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath Middle = new GeneralPath();
          Middle.moveTo(x + space, y + size);
          Middle.lineTo(x + size - space,y + size);
          g.draw(Middle);
          //Bottom
          if((flag & 4) == 4){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath Bottom = new GeneralPath();
          Bottom.moveTo(x + space, y + (size * 2));
          Bottom.lineTo(x + size - space, y + (size * 2));
          g.draw(Bottom);
          //TopLeft
          if((flag & 8) == 8){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath TopLeft = new GeneralPath();
          TopLeft.moveTo(x, y + space);
          TopLeft.lineTo(x, y + size - space);
          g.draw(TopLeft);
          //BottomLeft
          if((flag & 16) == 16){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath BottomLeft = new GeneralPath();
          BottomLeft.moveTo(x, y + size + space);
          BottomLeft.lineTo(x, y + (size * 2) - space);
          g.draw(BottomLeft);
          //TopRight
          if((flag & 32) == 32){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath TopRight = new GeneralPath();
          TopRight.moveTo(x + size, y + space);
          TopRight.lineTo(x + size, y + size - space);
          g.draw(TopRight);
          //BottomRight
          if((flag & 64) == 64){
               g.setPaint(on);
          }else{
               g.setPaint(off);
          GeneralPath BottomRight = new GeneralPath();
          BottomRight.moveTo(x + size, y + size + space);
          BottomRight.lineTo(x + size, y + (size * 2) - space);
          g.draw(BottomRight);
     public void setSpacing(boolean spacingOn){
          if(spacingOn == false){
               space = 0;
          else{
               this.setSpacing(spacingOn,5f);
     public void setSpacing(boolean spacingOn,float gap){
          if(gap<2){
               gap = 2;
          if(spacingOn == true){
               space = size/gap;
     public void setLocation(float x,float y){
          this.x = x;
          this.y = y;
     public void setSize(float size){
          this.size = size;
class AppFrame extends JFrame{
     AppFrame(){
          this("Demo Frame");
     AppFrame(String title){
          super(title);
          setSize(500,500);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

How to launch my RESTful TEST with JAVA EE application in NetBeans 6.5

Hi, I want to TEST my RESTful WebService in my JAVA Enterprise Application.
I have a bit database in my EJB Module. Resuming, I have two modules (EJB + WAR) and Enterprise Application (JAVA EE that contains the before modules). Appears two kind of errors:
1) When I only deploy JAVA Enterprise Project an then I run my TEST Restful, appears an error that says: "Another module has been deployed" . This error is about JAVA Enterprise Application has been deploy before.
2) If I only deploy TEST Restful, this doesn't find Facaderemote class of my EJB Module, because WAR Project hasn't the EJB references.
Thanks a lot.

VM7, welcome to the forum. Please don't post in threads that are long dead and don't hijack other threads. When you have a question, start your own topic. Feel free to provide a link to an old post that may be relevant to your problem.
I'm locking this thread now.
db

How to add a CSV file to a desktop application and access it?

I'm writing a desktop application for looking up phone numbers (this numbers are stored in a .CSV file). Where should I put the file in the project and how to access it? I intend to put it in the project and open it in a buffered reader!
Thanks!

The best place to put application data is probably user.home, as described in the [Store Application Settings and Components|http://sdnshare.sun.com/view.jsp?id=2305] post at SDNShare.
If those listings are still messed up, try these alternate renderings of [AppStore.java|http://pscode.org/fmt/sbx.html?url=/test%2FAppStore.java&col=2&fnt=2&tab=2&ln=0] & [AppStoreDemo.java|http://pscode.org/fmt/sbx.html?url=/test%2FAppStoreDemo.java&col=2&fnt=2&tab=2&ln=0].

Database in java desktop applications

0 vote down star
I am making a desktop application in java and using MS Access asdata base. I want that if i run the setup of the application the database should be created on client machine because there can be different client using the application
How to do it? please explain me in detail.. thanks

Path means where ever you want and have rights to put it locally. If you're going to hard code a location into your project, then yes, that does mean the same as your development, otherwise, you'll need to save some configuration string for db location.

How to reinstall Lync server 2013 Core Component Server Applications

Hi Would like to know how to register back the core server applications and where can i find the priority list. I incidentally
removed the server applications (ClientVersionFilter, IIMFilter, VoIP Apps and EumRouting and Outbouding) when i removed my MSPL script application from the pool. I missed out to put my script
app name after pool name when i run the command remove-cstrustedapplication. Then, it removed all the core apps from that pool.
I found that .am files and .exe files are still in the C:\Program Files\Microsoft Lync Server 2013\Core and tried
to register back using cmdlets but not very sure about the priority of the apps. Or can I install RTCHost.exe? Now Outgoing call is not working. Please kindly help. Thanks in Advance.

Oh.. thank you very much both
Saleesh and Eric. I will try it.
What I did is that I used the cmdlets New-CsServerApplication and registered the server apps (checked the server apps
list from testing fe server) like how I register MSPL script app. But I may miss out some components since testing fe server uses Standard Edition. I registered my
MSPL script app back too, but after a while Lync Front End Service keeps on stopping. I am not sure that
MSPL script or missing components which one causes to stop front end service. Now I am checking the event viewer logs.
If I run add-remove Lync component wizard on the server, will it remove any other settings like removing users from
pool? or it just install/unstall lync server core components only?
Many thanks!

How do I get rid of the Java Script Application that keeps popping up and saying 'invalid XMC value'?

Every time I click to add something to a message, this pops up. It is very irritating and I have no idea where or how it came from as it just started today.

This issue can be caused by an extension that isn't working properly.
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do not click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

How to validation of textbox in Core Java(Desktop Application)?

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