TCP/IP & Java/ Web Applets

I was wondering if there are any great resources on the internet or otherwise to learn how to program a Java App that will enable people to conect to it thru the internet.

Check out http://java.sun.com/j2se/1.4/docs/api/java/net/

Similar Messages

  • Java Web Applet Errors

    I have been making Java applications for a while and decided that I would teach myself applets. I am going absolutely no where fast. I copied some sample code from the tutorial (Simple.java) and made a simple web page to display it. I keep getting errors like "Invalid bytecode" and the applet cannot be found whenever I try something.
    Here is my html:
    <html>
    <head>
    <title>I hate applets</title>
    </head>
    <body>
    <h1>I'm learning applets and failing miserably</h1>
    <APPLET code=Simple.class width="200" height="200">
    Sorry, I am oblivious.
    </APPLET>
    </body>
    </html>
    I have the class file in the same directory as the html file. What am I doing wrong?
    Thanks for any help.

    An applet class is slightly different from an application class. Better take a look at
    http://java.sun.com/developer/onlineTraining/Programming/BasicJava1/applet.html

  • Why do Java web applets show up in the Dock sometimes?

    I use web-based gradebook (Infinite Campus). At times since upgrading to Lion, when I load this Java applet through Safari and begin to interact with it, it pops up as a Dock icon. This never used to happen under Snow Leopard. I can't tell if it's something different with the applet or with Lion/Safari 5.1, but I'm assuming the latter. Can anyone shed any light on this? Why would a Java applet show up in the Dock as its own icon while runnign within Safari rather than just running "faceless" within the Safari window? Is there any way to change this behavior on my end? I've poked around in the /Applications/Utilities/Java Preferences app, but I haven't found anything relevant. I've tried re-installing the Lion Java runtime, 10.7.2 Combo Updater, and Safari 5.11, to no effect.

    I use web-based gradebook (Infinite Campus). At times since upgrading to Lion, when I load this Java applet through Safari and begin to interact with it, it pops up as a Dock icon. This never used to happen under Snow Leopard. I can't tell if it's something different with the applet or with Lion/Safari 5.1, but I'm assuming the latter. Can anyone shed any light on this? Why would a Java applet show up in the Dock as its own icon while runnign within Safari rather than just running "faceless" within the Safari window? Is there any way to change this behavior on my end? I've poked around in the /Applications/Utilities/Java Preferences app, but I haven't found anything relevant. I've tried re-installing the Lion Java runtime, 10.7.2 Combo Updater, and Safari 5.11, to no effect.

  • How to run unix shell script from java web applet

    hi all
    i have created one java applet. my apache web server is on unix server.
    i have created one shell script in same directory where my .class and .htm files reside...
    how to run this shell script from applet? it should search this .sh file on server and not on the client browser machine...
    thanks in advance

    I suppose you could make the shell script into a CGI, configure the server to execute CGIs, and then make the applet open the URL of that CGI.

  • Can java web applet change the mouse speed?

    can a java applet
    using the browser hange the speed of the mouse
    like in the SystemParametersInfo API
    or can java use windows api at all?

    so the applet will have to include a dll
    another question can java move mouse cursor without dll's
    i mean an applet
    if not
    do u have any suggestion for a web based sulotion that can move mouse cursor and read mouse position without installing 3rd party plugins dll's exes in user system if there isn't any
    i want the best sulotion that does need thid party but is less invasive or more supported in most computers
    thx
    ( sorry for bad grammer )

  • ARD 3.5 and Java Web applets

    Dear readers and admins
    Is it right, that ARD in his last version is NOT able to show Java output inside a webbrowser?
    I did try to run a internet speedtest which uses Java but I don't see any thing where the Java code is placing his output.
    See yourself. http://www.speedtest.net
    Thank you for anyones feedback.
    Kind regards
    Thomas Thaler

    Nevermind, I have figured it out. Just for your information though:
    ARD actually detects whichever Macs are on the network (where the DynDns point to) and automatically display them on the admin windows.

  • Web applet to get pixel color

    I know nothing about java, but I 'll learn if I need. But first, I need to know if a java web applet can do the goal I need:
    A java web applet that can pass a specific pixel color on the browser windows to javascript. The coordinates of that pixel will stay outside the own applet borders.
    I don't know if this is the right forum, so can you please help me in any way?
    Thanks a lot.
    Julio Morales.

    juliochile wrote:
    I know nothing about java, but I 'll learn if I need.
    But first, I need to know if a java web applet can do the goal I need:Fair enough
    A java web applet that can pass a specific pixel color on the browser windows to javascript. Yes this can be done, but as I recall it was somewhat of a pain. It will also be browser-specific. If you ask me the requirement is probably flawed.
    The coordinates of that pixel will stay outside the own applet borders.Huh? So you need to sample a pixel? This post makes little sense. Post the exact use case. Way too vague.

  • Refresh an open web page on closing an applet launch from Java Web Start

    Hi
    I launch an aplication via Java Web Start from a link in a web page. I am looking to a solution to refresh my web page when I close my applet.
    Thanks in advance to give me the solution or only to let me know if it's possible or not.

    everything's possible. but this is not trivial. there is no direct connection between the html page that launched the app and the app. You can create an indirect connection by having the app notify a server process when it closes and having the page periodically polling the server for the app's status.

  • Java Web Start starting applet

    Dear all,
    I like to run heavy application as an applet and the best way is keep the jar containing the application in the client.
    I am wondering whether I can use java web start or not to deploy in the client the jar with the applet and so the client doesn't need to reload the jar from server unless there's some changes in the server.
    Can java web start also start the browser to start the application?
    I don't see any example in the internet although in java web start documentation says it is possible.
    Dani.

    You don't want the 2 dukes... come Vietnam and I will invite you some beers... can you?
    By the way... I know JWS is used to deploy applications.
    Maybe my question was not clear... By using jnlp file you can tell jws what is the class to be launched once loaded the jar file, and so just using an URL with the path of the jnlp file in the server, the browser will reload the jar and then the application is launched automatically. What i am wondering is whether i can or not launch my applet just typing the URL where the jnlp file is and so use the same browser. Once the jar is loaded, the applet would be launched in the browser. I don't like every time the user has to use the application, first need to verify he has the latest jar file using one URL in the browser and then he has to type another URL to launch the applet...
    Any ideas?
    Edited by: Daniel23 on Sep 27, 2007 1:50 AM

  • Which solution should I adopt? Applet or Java Web Start?

    Hi,
    I am developing a web application which should print cards through a printer in the client side.
    I would like to use a web start aplication to execute JNI calls in client side, but I am considering a possible solution the use of an Applet aplication to execute that.
    My question is "Which solution should I adopt?"
    Thanks a lot in advance.
    Regards.
    Paulo R. A. Sales.
    Software Architect.

    I would go for Java Web Start, since it is:
    a wonderful tool
    easy to use
    gives you full control
    you don't have to start your browser to print them cards
    But wait for better qualified responses as I haven't written an applaet since school.

  • How to add scroll function in  the applet launched by  Java Web Start?

    I have Java Web Start installed in order for the applet to launch.The applet size: width:700 height:1000
    my compuer resolution:800*600
    the applet launched by Java Web Start can only be seen partly,especially height.How to add scroll function in the applet launched by Java Web Start?
    Thanks for help.
    email:[email protected]

    You can very easily add a JScrollPane manually between the Applet and your content. Perhaps it would be beter if javaws did this automatically. In the browser, an applet can be any size. In Java Web Start an applet is directly contained within a JFrame, so it cannot be smaller than the minimum size of a JFrame, or Larger than the max.

  • Launching an applet with java web start

    Is there a way to launch an applet with java web start? That is, to have the java appelt run in a browser but get deployed with a jnlp-file and have all the benefits of java web start?
    Robert

    http://www.physci.org/jws/#jtest

  • 64bit, java web start, media framework, applets avi mov e.s.o.

    Using 64bit, (SuseLinux), nothing works i.e. webbrowsers (firefox),
    java web start, media framework, applets, avi, mov, e.s.o.
    -How to do to work around this? (I have latest jre+sdk 6)
    (note: firefox doing stupid thing when try to download plugin)
    Is it possible to write some kind of HTML-code to download an
    JAR-file from my (domain) webserver? And then: How to start it? (subject above)

    Works just fine for me, too even though the "instructions" do not mention any Mac OS or browser.
    Are you really at 10.4.8? Use Software Update to move up to 10.4.11.

  • HT5243 How does one know if they use "java applets"? What do they do? How will I know if I need to 'disable the java web plug-in browser' if I do not use them? ( I'm not very literate in computer-speak.

    How does one know if they use "java applets"? What do they do? How will I know if I need to 'disable the java web plug-in browser' if I do not use them? (Obviously I'm not very literate in computer-speak.)

    Well, when you go to a web page a section of the web page will have a coffee cup picture where the java applet will run. The applet loads then runs. If you are not seeing this behavior then you are not using java. If it make you feel more comfortable then disable the browser java plugin. On my machine I have not disable java- but you
    may what to.

  • Long time to start Java Web Client (Analyzer 6.2.1)??

    Does anyone know why Analyzer(6.2.1) takes a long time to start Java Web Client. Sometime it's even take more than 5 minutes. I think it is the Java Plug-in starting on the client computer. Any solution?

    The key to Analyzer 6.2.1 running correctly is the version of Sun Java Plugin. The ideal version (most optimal) is 1.3.0_02.Secondary to this if Analyzer performs OK once you are logged in then it could be down to the speed of your connection. The applet compiles at runtime (unlike Analyzer 5 which was a one time download). The delay in getting to the login screen could be this download.Hope this helps.Paul ArmitageAnalitica Ltd.www.analitica.co.uk

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