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Frequently Asked Questions

Can I use Web Start to deploy apps to mobile devices (J2ME)?

Unofficial Java Web Start/JNLP FAQ
Web Start is designed for rich desktop apps (aka resource hogs) requiring Megas of disk space and very likely doesn't fit on your Java phone unless you attach a Giga hard disk somehow. You can try the SavaJe XE operating system for StrongARM devices. SavaJe includes the J2SE 1.3, so it could work with Web Start. You can download a trial copy of SavaJe XE from http://www.savaje.com OpenJNLP has been split into a JNLP-launching library and a separate app/GUI.

Can I use Web Start to deploy server apps?

Unofficial Java Web Start/JNLP FAQ
Web Start is designed for rich desktop apps and, therefore, has currently limited support for command line apps or mission critical, 24x7x365, always-up, high performance daemons serving thousands of customers simultaneously. installation service for Java Daemons is also in the works as Java Specification Request (JSR) 96. Check out JSR 96 - Java Daemons at http://www.jcp.org/jsr/detail/96.jsp . See similar questions...

Can I use "ClickOnce" to deploy console apps?

General - Windows Forms FAQs
You can, but wouldn't you rather have a rich Windows Forms based UI? Also, console apps that require a command-line interface are beyond the scope of "ClickOnce" deployment in the .NET Framework 2.0. The primary reasons for this is that the install path... See similar questions...

Can I use Web Start for Intranet apps?

Unofficial Java Web Start/JNLP FAQ
Yes, Web Start is well-suited for Intranet apps. Note, that you can also use file:// URLs to access the local file system. If you use file:// URLs you need to use file:/// because file:// doesn't work. The third slash is required for the left out host name. Example: javaws file:///c:/sandbox/venus/startup/hazel.jnlp In case your path to the .jnlp file contains spaces, enclose the path in double quotes. Example: javaws "file:///C:\Program Files\Java Web Start\ . See similar questions...

Can I use Web Start for command line/batch apps?

Unofficial Java Web Start/JNLP FAQ
Support for command line/batch apps is currently limited. You can launch apps from a command prompt/shell. Example: javaws http://java.sun.com/apps/draw.jnlp However, you cannot pass in arguments for your app on the command line as javaws only takes a single URL as an argument and ignores the rest. If you want to pass in arguments to your app, you have to add them to the start-up file (aka JNLP descriptor) using <argument> or <property> elements. See similar questions...

How can I debug apps under Web Start?

Unofficial Java Web Start/JNLP FAQ
Here is a simple solution to debug your app under Web Start: C:\Program Files\JavaSoft\JRE\1.3.0_02\bin\javaw.exe -Xdebug -Dnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,address=8118 "-Djnlpx.home=C:\Program Files\Java Web Start" "-Djnlpx.heapsize=NULL,NULL" "-Djnlpx.jvm=C:\Program Files\JavaSoft\JRE\1.3.0_02\bin\javaw.exe" "-Djava.security.policy=file:C:\Program Files\Java Web Start/javaws.policy" "-DtrustProxy=true" -classpath "C:\Program Files\Java Web Start\javaws. See similar questions...

Can I use AspectJ with J2ME?

AspectJ Frequently Asked Questions
The J2ME platform has several different components. See similar questions...

Can I deploy Localized apps with "ClickOnce"?

ClickOnce - Windows Forms FAQs
Yes. With Visual Studio, it's quite easy. Simply indicate the language of the deployment in the publishing options & the correct satellite assemblies will be automatically published with your deployment. See similar questions...

Can I deploy any application with Java Web Start?

Java Web Start - Frequently Asked Questions (FAQ)
application must be delivered in a set of JAR files and all application resources, such as images, configuration files, and native libraries must be included in the JAR files. The resources must be looked up using the method ClassLoader.getResource() or an equivalent method. Java Web Start only transfers JAR files from the web server to the client. See similar questions...

Can I run Web Start Apps on a headless (monitor-less) UNIX system?

Unofficial Java Web Start/JNLP FAQ
Headless (monitor-less) UNIX machines usually have no XWindow installed and, therefore, lack a browser. You can start your Web Start apps from the command line. Web Start currently cannot run on headless UNIX systems even if you suppress Web Start's splash popup using the undocumented javaws.cfg.showSplashScreen false property. See similar questions...

What's the best way to move my Web Start apps to a different server?

Unofficial Java Web Start/JNLP FAQ
If you move your Web Start app to a different server (that is, different codebase in Web Start parlance), your users will likely end up ruminating why they now have two identical icons for your wonderful app on their desktop and how they differ. To help your user differentiate your apps hosted on the old server (e.g. cloud7.com) from your apps hosted on the new server (e.g cloud8. See similar questions...

How to share cookies/sessions between Web Start apps and servlets?

Unofficial Java Web Start/JNLP FAQ
Sun's Wireless Dev Site features two articles on session tracking between servlets and wireless apps (aka MIDP midlets). You can cut and paste the code into your Web Start desktop apps almost without any changes. Jonathan Knudsen's Session Handling in MIDP, January 2002 - http://wireless.java.sun.com/midp/articles/sessions/ Qusay Mahmoud's MIDP Inter-Communication with CGI and Servlets, February 2001 - http://wireless.java.sun. See similar questions...

What is the Mobile Web, and how do I use it?

The Official Site of Major League Baseball: Help: MLB.com Mo...
Mobile Web sites are similar to regular Web sites, but they are specially formatted to work with a wide variety of mobile devices. To access the mobile Web, most service providers require you to have a data access plan of some kind. The pricing for data plans vary - some charge you for the amount of data you use, some charge flat rates, others deduct minutes from your voice plan. Because each phone is different, the steps to access the mobile Web can be different. See similar questions...

Can I use "ClickOnce" to deploy an Office addin?

General - Windows Forms FAQs
No. Addins generally require special registration and integrated activation within the hosting application. The "ClickOnce" installer does not support machine level changes such as this. See similar questions...

Can I distribute Web Start apps without putting them on a web server (aka CD installers)?

Unofficial Java Web Start/JNLP FAQ
Vamp (aka Venus Application Publisher) offers a couple of choices such as installing your app directly into Web Start's cache or using single, self-contained jars that include a built-in, ultra light-weight web server that serves up your app's jars from the installer's jar itself. Celia - command line installer to install web archives (.war) or client archives (.car) directly into Web Start cache Pam - package manager that installs web archives (.war) or client archives (. See similar questions...

Back What is J2ME?

Data Representations: Support
J2ME is The Java(TM) 2 Platform Micro Edition. This edition targets the Java 2 platform targeted at handheld devices such as PDAs and phones. It includes a virtual Machine (VM) and a set of APIs for the runtime environments on handheld devices. The J2ME technology has two primary kinds of components--configurations and profiles. The two most important configurations are Connected Limited Device Configurations (CLDC) and Connected Device Configuration (CDC). See similar questions...

How do I deploy files to non-default, (i.e. APPS) directories?

Wavelink Mobile Device and Wireless Infrastructure Managemen...
On the file entry line in the Package Files tab, click on the "Install Drive" column, and change it to "C" Click on the Install Path column and insert the complete path from root to install the file. (For example, "\Windows\Program Files\MyApplication"). See similar questions...

Can I embed an on-screen keyboard for use with mobile devices?

GnomeScreensaver/FrequentlyAskedQuestions - GNOME Live!
More Actions: Raw Text Print View Render as Docbook Delete Cache ------------------------ Check Spelling Like Pages Local Site Map ------------------------ Rename Page Copy Page Delete Page ------------------------ My Pages Subscribe User ------------------------ Remove Spam Revert to this revision Package Pages Sync Pages ------------------------ Load Save See similar questions...

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