Keyboard input in swing app

If you have a swing app how do you listen to keyboard clicks? (Similar actionListener with buttons menus etc)
For example up, down,right, left...

From the Swing tutorial, here is the section on "Listeners Support by Swing":
http://java.sun.com/docs/books/tutorial/uiswing/events/eventsandcomponents.html
Check out the Key Listener.

Similar Messages

  • Safari 7.1 blocks all keyboard input in Flash app

    Safari 7.1 on OSX 10.9.5 blocks any and all keyboard input for FlashPlayer applications!! Everything worked fine until the upgrade to Safari 7.1 and OSX 10.9.5. Tried FlashPlayer 14 and the latest 15 -- still no keyboard input, not even in debug mode (I'm a developer of enterprise apps for browsers).
    The same app still works just fine in Firefox and Google Chrome! Is this just a mishap on Apple's side? Or just another hit to kill off the most productive computer language I've ever used (and I used Apple's own Objective-C as well)??
    Come on Apple! I love you guys and use your products a lot, but is this really necessary for the most powerful and valuable company in the world -- to hurt a language with such tricks that doesn't do you any harm at all?? This makes you look more like the "PC guy" from your own former commercials (instead of the lovable "Mac guy") ...

    From the menu bar, select
               ▹ System Preferences… ▹ Flash Player ▹ Advanced
    and click Delete All. Close the preference pane.
    From the Safari menu bar, select
              Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data
    and confirm. Test.

  • Keyboard input through swing

    How do I make it so that in swing a person can press a keyboard button and it will then go to a new screen with out the unput dearea being visable. I tried doing it with a text area but when I made it invisible it would not respond to keyboard input?

    hi buddy,
    u can create a new JFrame and call tht in the text area's ActionListener
    and then while creating the JFrame use the Following code to close the frame on exit,
    ur swing program will surely respond to it then
    JFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    in case u want to get the text b4 closing u can use a string variable to set the text to it and then come out,
    cheers,
    hayath

  • Flash movie stealing keyboard input Facebook Connect app

    I have a Flash application that integrated Facebook friend connect. When the user initiates Facebook Friend Connect it pops up a new window that prompts the user to log into facebook.
    On internet explorer when I type in my username and password I intermittently lose key strokes. If I remove the flash page from the HTML content and do the same facebook connect on IE I don't lose the keystrokes.
    On Firefox this works completely fine.
    Is there something in flash that could be causing this behavior of intermittent keyboard focus stealing on IE?

    i would first try a different external keyboard if you have one. try other usb ports on the mbp as well. if another keyboard doesnt give you grief then you would want to go to a retail store and have them swap it out or call apple support for a replacement.

  • Swing app keyboard stops working, mystery ESCAPE keystrokes appear in EDT

    Java 6 Swing app. In our development environment, works great. In QA, they use it for a bit, type in a text field, click out to a Windows XP/7 app, click back in the text field, and the keyboard stops accepting keystrokes. The mouse continues to work, and the Swing app continues to paint to the screen.
    I hooked up a KeyEventDispatcher to listen to what is going on. I'll post a more verbose log at the end of this post, but the short version is this. When the keyboard hangs, the log shows that 'escape' keys are being sent, though we do not do any keystroke injection in our app, ESCAPE or otherwise. Nothing on the Swing app can be determined visually to have focus.
    Just before the app starts hanging, it has a side effect of not being able to be brought into the foreground by clicking on it, if, for example, one was working with Excel or Notepad, then try to click on the JFrame title of the app, or anywhere else on the app frame/internals. Once this condition happens, moving away to another Windows app, then going back to the Swing app, causes the keyboard to stop working and the KeyEventDispatcher to see 'escape' keystrokes being sent out.
    Connecting remotely to the app via JVisualVM/JConsole does not show any of the threads hanging/blocked.
    Sometimes you can work for hours before seeing this problem, and other times, you can start the app up and it happens right away. Once it happens, sometimes you can't recover, and sometimes you can click on a button on a navigator panel on the left side that displays an info panel on the right side, and you can start typing again in text fields.
    Once this problem happens, you can start (or have already running) a completely different Swing app (ex.: StackTrace), and the keyboard will stop working for that app too, even though its running in its own separate VM.
    This problem (ALMOST!) always happen when typing in a Swing text field (JTextField, JTextArea, etc.), clicking on and then typing in a Windows text area (Excel cell, Notepad), then clicking back into the Swing app's text field. A few times, we've gotten this to happen by typing in a text field, tabbing to a button, pressing a button, then tabbing/clicking back into the text field, all without leaving the Swing app. But this latter scenario is rare, usually going to/from Swing/Windows XP/7 apps cause the problem to occur more readily.
    The QA computers normally use Citrix to connect and run the app, but this also happens if we run the app completely locally. But again, this only happens to some computers, all of the ones in the QA department; the development computers (the app has not been released into production yet) does not see this problem.
    I had thought that our problem was this problem (Wrong characters in KeyEvents generated from input of barcode scanner but purposely slowing down the acceptance of KEY_PRESSED and KEY_RELEASED events before allowing them to go on to the Swing app (via a KeyDispatcher) did not solve the problem.
    Also, we had thought it might be a Citrix problem and how it (or does it?) hook into the Windows keyboard. The fact that once one Swing app gets into this keyboard doesn't work and escape keys are being sent out by the EDT can affect another Swing app makes me wonder. We're not seeing any VM exceptions either like this (EXCEPTION_ACCESS_VIOLATION - JRE 6.0_23 - Citrix, windows 2003
    Been trying to get this one solved for over a week, but with no luck. Any help/advice would be appreciated. Thank you in advance for your time.
    P.S. Here's the detailed log info I generated via my KeyEventDispatch listener...
    2011-04-01 11:58:17,493 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:36 - KEY1-keystroke [java.awt.DefaultKeyboardFocusManager@377369]: java.awt.event.KeyEvent[KEY_PRESSED,keyCode=27,keyText=Escape,keyChar=Escape,keyLocation=KEY_LOCATION_STANDARD,rawCode=27,primaryLevelUnicode=27,scancode=1] on javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,494 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:42 - KEY2-ActiveWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,496 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:48 - KEY3-CurrentFocusCycleRoot: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,497 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:54 - KEY4-FocusedWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,498 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:60 - KEY5-FocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,499 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:66 - KEY6-PermanentFocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,501 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:74 - KEY7-stacktrace...
    com..client.util.MyKeyEventDispatcher$StackTraceGenerationException: This exception was created to generate a stack trace, and can be safely ignored.
         at com..client.util.MyKeyEventDispatcher.dispatchKeyEvent(MyKeyEventDispatcher.java:73)
         at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
         at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
         at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
         at java.awt.Component.dispatchEventImpl(Unknown Source)
         at java.awt.Container.dispatchEventImpl(Unknown Source)
         at java.awt.Window.dispatchEventImpl(Unknown Source)
         at java.awt.Component.dispatchEvent(Unknown Source)
         at java.awt.EventQueue.dispatchEvent(Unknown Source)
         at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.run(Unknown Source)
    2011-04-01 11:58:17,504 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:36 - KEY1-keystroke [java.awt.DefaultKeyboardFocusManager@377369]: java.awt.event.KeyEvent[KEY_RELEASED,keyCode=27,keyText=Escape,keyChar=Escape,keyLocation=KEY_LOCATION_STANDARD,rawCode=27,primaryLevelUnicode=27,scancode=1] on javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,506 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:42 - KEY2-ActiveWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,507 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:48 - KEY3-CurrentFocusCycleRoot: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,508 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:54 - KEY4-FocusedWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
    2011-04-01 11:58:17,509 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:60 - KEY5-FocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,510 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:66 - KEY6-PermanentFocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
    2011-04-01 11:58:17,512 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:74 - KEY7-stacktrace...
    com..client.util.MyKeyEventDispatcher$StackTraceGenerationException: This exception was created to generate a stack trace, and can be safely ignored.
         at com..client.util.MyKeyEventDispatcher.dispatchKeyEvent(MyKeyEventDispatcher.java:73)
         at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
         at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
         at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
         at java.awt.Component.dispatchEventImpl(Unknown Source)
         at java.awt.Container.dispatchEventImpl(Unknown Source)
         at java.awt.Window.dispatchEventImpl(Unknown Source)
         at java.awt.Component.dispatchEvent(Unknown Source)
         at java.awt.EventQueue.dispatchEvent(Unknown Source)
         at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
         at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
         at java.awt.EventDispatchThread.run(Unknown Source)
    The above log info repeats multiple times, KEY_PRESSED and KEY_RELEASE, over and over again, for 'escape' keys.
    Edited by: 850693 on Apr 7, 2011 10:16 AM (typo fix)
    Edited by: 850693 on Apr 7, 2011 10:19 AM (Fixed links)

    <discaimer>Don't put too much hope in my reply</disclaimer>
    The only real difference is QA has the Citrix client installed on them, and development does not. You don't need to run our Swing app through a Citrix client though to cause the bug/freezing, just running it on a PC with the Citrix client seems to be enough (in theory). We've been working down a checklist of possible problems/solutions, and we've gotten to the "Install Citrix to the dev PC" item now, so I'll post back if that makes a difference or not in reproducing the problem.
    I've also had QA people actually come over to a dev PC, without the Citrix client, and try to reproduce the problem, and they have not been able to. There's 'something' about their environment vs. ours, but not sure how that would manifest itself as a AWT/Swing keyboard event of mysterious escape keystrokes followed by the locking up on the keyboard, but not the whole Swing app. My personal guess is the Citirix client installing funky Windows-level keyboard driver(s), but I may be totally off on that. /shrugI read your initial post twice and couldn't find out whether you reproduce that on several different machines, so one "environmental" difference comes to mind: have you tried using another keyboard on the defective QA configuration?
    Of course that doesn't explain in itself how the problem would manifest only after switching back and forth to a native Windows app, but then, with the hint that Citrix may make a difference, maybe one driver filters out repeated "Esc" keystrokes, while another doesn't, and that manifests only after a few app switches, and the system event queue, or whatever it's called in Windows, redirects the events to the target app/window?
    Other than that, I wish you had investigated Jeanette's pacemaker hypothesis more... ;)
    Otherwise, yeah. I have a hook in to see all AWTEvent's, but I still need to see/find what's posting the mysterious escape keys to the event queue.I assume it's what you mean, but I'll try to make that clear: you have to investigate, at the OS level, what is posting escape key events to the OS queue.
    I am not a Windows developper, but I seem to understand that the following programs claims to capture keystrokes on the whole screen (not limited to a single window), with some limitations: http://www.codeproject.com/KB/winsdk/WIN_RECORDER.aspx
    More generally, you should search for a Windows way to peek at the Windows' (keyboard?) event queue.
    I'm not sure this could identify which DLL (if it's not originated by the material, see the defective keyboard hypothesis) is posting the events, but that's worth a try (Java for example, would enables to stuff a custom event queue that would trace info about a Java-poster).
    Even if you can't identify the posting DLL, running the "key captuyre" on both the Windows host that has the Citrix window, and the Windows host that you are accessing via Citrix, may give you hints as to where the heck the key strokes originate...
    Good luck, and keep us informed,
    J.

  • Keyboard Problem while running Swing App on LINUX

    Hi All,
    We have a Swing based Application running on Windows Platform. We need to run the Application on LINUX. The Application does not have any problem and runs without problems for a few minutes but after that the keyboard stops to respond inside the application. Keyboard runs fine outside the application but no key events are recognized inside the application. Mouse is working fine even after the keyboard stops responding.
    Key Points:
    �     The keyboard is a PS/2 keyboard.
    �     Read Hat Fedora 5.0 is being used.
    �     The problems occur on both KDE and GNONE.
    �     The Java Version is jdk1.5.0_09
    The application is data entry application using EJB at server side. The client UI has lot of JTables and Desktop Panes/ Internal Frames. User use ctrl+tab, ctrl+shift+tab, tab, shift+tab, and other hot keys to navigate between Components. Listeners on keyboard Focus Owner are also used. We are unable to diagnose the problem because of the undeterminable nature of the problem. The problem occurs at anytime and does not occur on any special key/ combinations press.
    Thanks and Regards,
    Nishant Saini
    http://www.simplyjava.com

    I've just installed the JDK 1.4 on my debian box. I
    can compile and run a basic Hello World app using
    System.println, but when I try to run a simple swing
    app, I get an error like:
    Exception in thread "main"
    java.lang.NoClassDefFoundError
    at java.lang.Class.forName0(Native Method)
    at java.lang.... etc, etc.
    It goes on with about 30 different classes. It
    compiles fine, with no errors, but when it comes time
    to run, that's what I get. This is what I have in my
    .bash_profile as far as environment variables go:
    export JAVA_HOME="/usr/local/j2sdk1.4.1_01"
    export PATH="$JAVA_HOME/BIN:$PATH"
    export
    CLASSPATH="$JAVA_HOME/jre/lib/:$JAVA_HOME/lib:."The code works fine in Windows, so unless there's
    something platform-specific, I don't think there's a
    problem there. I've checked to make sure I'm not
    running kaffe by accident and I'm definitely running
    the right java and javac. I'm out of ideas. Any
    suggestions would be greatly appreciated.
    -dudley
    I may just be crazy, but your PATH looks a little screwy to me. I was under the impression that the standard java installation has its executables in the 'bin' directory, not the 'BIN' directory. Unless Debian has fallen to the evil empire, then I'm fairly sure file names are case-sensitive. I don't know if that will fix your problem though. Do you compile from the command line, or do you use an IDE???

  • PPC apps (on intel): slow startup, no keyboard input, Excel-Office crashes

    Hello,
    It seems, that all apps that are using rosetta don't work properly.
    - The startup time is extremely long, some minutes, spinning wheel is visible
    - input via keyboard isn't possible
    - Office v. X (Word, Excel, PowerPoint) apps are crashing at startup
    A test with the Calculator.app switched to open with rosetta showed also this symptoms (no keyboard input possible)
    Curiously all this happens *only with my account*. So first I thought it is a problem of the preferences or fonts. But deletion or substitution from backup does not succeed. Also I did the tip sudo "update_prebinding -root / -force" but it didn't help.
    I mad up a fresh account and compared all the files in the ~user/Library path, if there is a file missing in the brocken account. But didn't found some.
    Is there anywhere a file outside the ~user/library path, which has user dependend informations (for rosetta)?
    Many thanks in advance for any idea
    George

    Yeah, I've got it!
    In /Library/Caches I found the following files and trashed them. Now all PowerPC application incl. Office v. X are working again. Huh!
    (My User ID is 504)
    com.apple.ImageCaptureExtension2.ICADeviceDatabase.504
    com.apple.IntlDataCache.sbdl.504
    com.apple.IntlDataCache.504
    com.apple.IntlDataCache.tecx.504
    com.apple.IntlDataCache.kbdx.504
    com.apple.LaunchServices-014504.csstore
    com.apple.IntlDataCache.le.504
    com.apple.colorsync.profiles.504
    com.apple.IntlDataCache.le.kbdx.504
    com.apple.dock.iconcache.504
    com.apple.IntlDataCache.le.sbdl.504
    com.apple.psnormalizer.fontcache.le.504
    com.apple.IntlDataCache.le.taid.504
    com.apple.psnormalizer.fontcache.le.504.lock
    com.apple.IntlDataCache.le.tecx.504
    I didn't look for the single fault in any of this files, but maybe someone has an idea, which file is related to rosetta and likes to post it.
    Best regards and thanks to everybody who thoughts about a solution for my problem
    George

  • OSX/SL 10.6.8 all window apps lose keyboard input; mouse and cmd-N work for spaces

    Input suddenly stops going to all applications, from MacBook Pro and wireless keyboards, and from "Show Keyboard viewer" (OSX 10.6.8 'Snow Leopard', MacBook Pro). Though the OSX Keyboard Viewer shows the keys onscreen as they are pressed on the MacBook and wireless keyboards. 'Spaces' responds to cmd-N commands, but no input is possible to any running or newly-started 3rd party or Apple-provided application. Killing off applications one by one doesn't recover keyboard input ability;  a complete reboot appears necessary to restore the ability to key input into applications. This happens repeatedly, yet never registers as an OS/X 'crash' because 'Force Quit'ting applications and restarting is still possible using only the magic mouse or trackpad.   No data  whether only logging out and back in would correct the apparent input-focus disconnect of all applications with the window manager. There may be some way to restart the window manager by using the mouse to open up new apps and/or cut and paste characters ( including a carriage return ) or cut and paste entire saved typed commands into a terminal window.

    Do a backup, using either Time Machine or a cloning program, to ensure files/data can be recovered. Two backups are better than one.
    Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.
    Isolating an issue by using another user account
    If the problem is still there, try booting into the Safe Mode using your normal account.  Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.
    Safe Mode - About
    Safe Mode

  • I need to get Keyboard input as well as mouse input on a JButton

    I need to get Keyboard input as well as mouse input on a JButton
    I have attempted to implement KeyListener. I get the keyCode but I need it to go in to the same String variable as my Actionlistener section.

    Here is the code I have trouble with getting keyboard input as wells as mouse input into the same variable.
    public class Calctester extends JFrame
    implements ActionListener, KeyListener
    private double var1, var2;//var1 and var2 are used to perform calculation
    String operand1 = "";//takes first input until an operator is pressed
    String operand2 = "";//takes input after operator is invoked
    double result;//is used to store the result
    boolean flag = false;//to signal operator pressed
    boolean decimalFlag = false;//to signal decimal pressed
    String stringInput;//used as a temporary store for all entry to allow for conditions to be evaluated
    char ch; //used to store the operator for comparison//Reason is pre does not compare using string
    String pre = "";//used to store the operator
    double mem; //will hold memory operation values
    double vMod; //Temporary store for var2 to be used with percent operations
    //Creates buttons
    JButton btn0 = new JButton("0");
    JButton btn1 = new JButton("1");
    JButton btn2 = new JButton("2");
    JButton btn3 = new JButton("3");
    JButton btn4 = new JButton("4");
    JButton btn5 = new JButton("5");
    JButton btn6 = new JButton("6");
    JButton btn7 = new JButton("7");
    JButton btn8 = new JButton("8");
    JButton btn9 = new JButton("9");
    JButton btnC = new JButton("C");
    JButton btnCE = new JButton("CE");
    JButton btnBkpSpc = new JButton("Backspace");
    JButton btnPlus = new JButton("+");
    JButton btnMinus = new JButton("-");
    JButton btnMultiply = new JButton("*");
    JButton btnDivide = new JButton("/");
    JButton btnEquals = new JButton("=");
    JButton btnPeriod = new JButton(".");
    JButton btnPlusMinus = new JButton("+/-");
    JButton btnSqrt = new JButton("sqrt");
    JButton btnMod = new JButton("%");
    JButton btnOneOverX = new JButton("1/x");
    JButton btnMC = new JButton("MC");
    JButton btnMR = new JButton("MR");
    JButton btnMS = new JButton("MS");
    JButton btnMPlus = new JButton("M+");
    //Displays Text area for Display
    JTextField txtArea = new JTextField("0.");//The calculation display area set to 0.
    JTextField mArea = new JTextField();//to display memory operations
    //Default constructor
    Calctester()
    //Defines a content pane
    Container c = getContentPane();
    //Defines the layout of the frame and sets it to null to allow absolute positioning
    c.setLayout(null);
    //Defines event handling
    btn0.addActionListener(this);
    btn1.addActionListener(this);
    btn2.addActionListener(this);
    btn3.addActionListener(this);
    btn4.addActionListener(this);
    btn5.addActionListener(this);
    btn6.addActionListener(this);
    btn7.addActionListener(this);
    btn8.addActionListener(this);
    btn9.addActionListener(this);
    btnC.addActionListener(this);
    btnCE.addActionListener(this);
    btnBkpSpc.addActionListener(this);
    btnPlus.addActionListener(this);
    btnMinus.addActionListener(this);
    btnDivide.addActionListener(this);
    btnMultiply.addActionListener(this);
    btnEquals.addActionListener(this);
    btnPeriod.addActionListener(this);
    btnPlusMinus.addActionListener(this);
    btnSqrt.addActionListener(this);
    btnMod.addActionListener(this);
    btnOneOverX.addActionListener(this);
    btnMR.addActionListener(this);
    btnMS.addActionListener(this);
    btnMPlus.addActionListener(this);
    btnMC.addActionListener(this);
    btn1.addKeyListener(this);
    //Adds the buttons to the frame and sets the font of the label to be
    //logical font Dialog,plain as opposed to Bold and the label size to 12
    //Also sets the border type of aech button
    c.add(btn0).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn0.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn1).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn1.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn2).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn2.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn3).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn3.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn4).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn4.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn5).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn5.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn6).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn6.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn7).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn7.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn8).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn8.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btn9).setFont(new Font("Dialog", Font.PLAIN, 12));
    btn9.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnC).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnC.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnCE).setFont(new Font("Helvetica", Font.PLAIN, 12));
    btnCE.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnBkpSpc).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnBkpSpc.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnPlus).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnPlus.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMinus).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMinus.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMultiply).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMultiply.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnDivide).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnDivide.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnEquals).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnEquals.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnPeriod).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnPeriod.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnPlusMinus).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnPlusMinus.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMod).setFont(new Font("Albertus Medium", Font.PLAIN, 12));
    btnMod.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnSqrt).setFont(new Font("Microsoft San Serif", Font.PLAIN, 11));
    btnSqrt.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnOneOverX).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnOneOverX.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMC).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMC.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMS).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMS.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMR).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMR.setBorder(new BevelBorder(BevelBorder.RAISED));
    c.add(btnMPlus).setFont(new Font("Dialog", Font.PLAIN, 12));
    btnMPlus.setBorder(new BevelBorder(BevelBorder.RAISED));
    //sets the color of the label of the buttons
    btnC.setForeground(Color.red);
    btnCE.setForeground(Color.red);
    btnBkpSpc.setForeground(Color.red);
    btnDivide.setForeground(Color.red);
    btnMultiply.setForeground(Color.red);
    btnMinus.setForeground(Color.red);
    btnPlus.setForeground(Color.red);
    btnMC.setForeground(Color.red);
    btnMR.setForeground(Color.red);
    btnMS.setForeground(Color.red);
    btnMPlus.setForeground(Color.red);
    btnEquals.setForeground(Color.red);
    btn0.setForeground(Color.blue);
    btn1.setForeground(Color.blue);
    btn2.setForeground(Color.blue);
    btn3.setForeground(Color.blue);
    btn4.setForeground(Color.blue);
    btn5.setForeground(Color.blue);
    btn6.setForeground(Color.blue);
    btn7.setForeground(Color.blue);
    btn8.setForeground(Color.blue);
    btn9.setForeground(Color.blue);
    btnPlusMinus.setForeground(Color.blue);
    btnSqrt.setForeground(Color.blue);
    btnMod.setForeground(Color.blue);
    btnOneOverX.setForeground(Color.blue);
    btn0.setFocusPainted(false);
    btnPlus.setFocusPainted(false);
    btnEquals.setFocusPainted(false);
    //The display text area and the memory operation text area
    c.add(txtArea);
    txtArea.setBorder(new BevelBorder(BevelBorder.LOWERED));
    txtArea.setBounds(7,0,240,25);//To provide a Text box @ the top of the frame
    txtArea.setEditable(false);
    txtArea.setBackground(Color.white);
    c.add(mArea);
    mArea.setBounds(13, 35, 28, 25);
    mArea.setEditable(false);
    mArea.setBorder(new BevelBorder(BevelBorder.LOWERED));
    setSize(260,251);//size of the frame
    setTitle("Calculator"); //Title
    setVisible(true); //this makes the frame visible on the screen
    setResizable(false); //this disallow resizing of the frame
    setDefaultCloseOperation(EXIT_ON_CLOSE);//to close app
    //instead of the above method you can use the WindowsListener which extennds other classes and implements other interfaces.
    setLocation(300,200);//positioning of the window on the screen
    txtArea.setHorizontalAlignment(JTextField.RIGHT);//sets the text in the text field to the right
    mArea.setHorizontalAlignment(JTextField.CENTER);//centers the label
    JMenu editMenu = new JMenu("Edit");//creates menu
    JMenuItem copy = new JMenuItem("Copy Ctrl+C");//creates menu item
    copy.addActionListener(this);//event handling
    JMenuItem paste = new JMenuItem("Paste Ctrl+V");//creates menu
    paste.addActionListener(this);//event handling
    JMenuBar myMenu = new JMenuBar();//declares a menu bar
    setJMenuBar(myMenu);//adds the menu bar to the frame
    editMenu.setBorderPainted(false);//removes the border shadow around the menu bar
    myMenu.setBorderPainted(false);//removes the border shadow around menu bar
    //adds menu items to the menu, sets the font and font size.
    editMenu.add(paste).setFont(new Font("Dialog", Font.PLAIN, 12));//
    editMenu.add(copy).setFont(new Font("Dialog", Font.PLAIN, 12));
    myMenu.add(editMenu).setFont(new Font("Dialog", Font.PLAIN, 12));
    JMenu viewMenu = new JMenu("View");//creates menu
    JMenuItem sci = new JMenuItem("Scientific");//creates menu item
    sci.addActionListener(this);//event handling
    JMenuItem std = new JMenuItem("Standard");//creates menu item
    //adds menu items to the menu, sets the font and font size.
    viewMenu.add(sci).setFont(new Font("Dialog", Font.PLAIN, 12));
    viewMenu.add(std).setFont(new Font("Dialog", Font.PLAIN, 12));
    myMenu.add(viewMenu).setFont(new Font("Dialog", Font.PLAIN, 12));
    JMenu helpMenu = new JMenu("Help");//creates menu
    JMenuItem helpTopics = new JMenuItem("Help Topics");//creates menu item
    JMenuItem aboutCalc = new JMenuItem("About Calculator");//creates menu item
    helpTopics.addActionListener(this);//event handling
    //helpTopics.setBorder(new BevelBorder(BevelBorder.RAISED));
    helpTopics.setBorder(LineBorder.createGrayLineBorder());
    //adds menu items to the menu, sets the font and font size.
    helpMenu.add(helpTopics).setFont(new Font("Dialog", Font.PLAIN, 12));
    helpMenu.add(aboutCalc).setFont(new Font("Dialog", Font.PLAIN, 12));
    myMenu.add(helpMenu).setFont(new Font("Dialog", Font.PLAIN, 12));
    //aboutCalc.setBorder(new BevelBorder(BevelBorder.RAISED));
    aboutCalc.setBorder(LineBorder.createGrayLineBorder());
    //aboutCalc.setActionCommand("Nothing here right now");
    //Setting absolute positions for the buttons.
    btn0.setBounds(50, 160, 35, 28);
    btn1.setBounds(50, 130, 35, 28);
    btn2.setBounds(90, 130, 35, 28);
    btn3.setBounds(130, 130, 35, 28);
    btn4.setBounds(50, 100, 35, 28);
    btn5.setBounds(90, 100, 35, 28);
    btn6.setBounds(130, 100, 35, 28);
    btn7.setBounds(50, 70, 35, 28);
    btn8.setBounds(90, 70, 35, 28);
    btn9.setBounds(130, 70, 35, 28);
    btnC.setBounds(180, 35, 63, 28);
    btnCE.setBounds(115, 35, 63, 28);
    btnBkpSpc.setBounds(50, 35, 63, 28);
    btnPlus.setBounds(170, 160, 35, 28);
    btnMinus.setBounds(170, 130, 35, 28);
    btnMultiply.setBounds(170, 100, 35, 28);
    btnDivide.setBounds(170, 70, 35, 28);
    btnEquals.setBounds(210, 160, 35, 28);
    btnPeriod.setBounds(130, 160, 35, 28);
    btnPlusMinus.setBounds(90, 160, 35, 28);
    btnMC.setBounds(8, 70, 35, 28);
    btnMR.setBounds(8, 100, 35, 28);
    btnMS.setBounds(8, 130, 35, 28);
    btnMPlus.setBounds(8, 160, 35, 28);
    btnSqrt.setBounds(210, 70, 35, 28);
    btnMod.setBounds(210, 100, 35, 28);
    btnOneOverX.setBounds(210, 130, 35, 28);
    // btn7.addKeyListener(this);
    try
    UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
    SwingUtilities.updateComponentTreeUI(this);
    catch (Exception e)
    System.out.println("Could not load Metal Look and Feel");
    public void keyReleased(KeyEvent e)
    //btn1 = txtArea.getRegisteredKeyStrokes();
    // System.out.println(1);
    // keyTyped();
    public void keyPressed(KeyEvent e)
    //if (e.getActionCommand().equals("1"));
    //(e.getKeyText().compareTo("1"));
    //(e.getKeyCode().equals("1"));
    //else
    System.out.println("Error");
    //keyTyped();
    public void keyTyped(KeyEvent e)
    //displayInfo(e, "KEY TYPED: ");
    System.err.println("KeyTyped >>> " + e.KEY_TYPED);
    //keyEvent.keyTyped();
    // e.KEY_TYPED;
    /* protected void displayInfo (KeyEvent e, string s)
    {KeyCodeString;
    int keyCode = e.getKeyCode();
    keyCodeString = "key code " + keyCode
    + "("
    + KeyEvent.getKeyText(keyCode);
    public void actionPerformed(ActionEvent e)
    stringInput = e.getActionCommand();
    System.out.println("First stringInput action performed>>" +stringInput);
    System.out.println("First pre action performed>>" +pre);
    if (stringInput == "C")
    operand1 = "";
    operand2 = "";
    var1 = 0;
    var2 = 0;
    var1 = result;
    txtArea.setText("0.");
    flag = false;//to force the operations to jump to operand 1 and go through the loop as normal
    pre = "";
    if (stringInput == "CE")
    operand2 = "";
    var2 = 0;
    txtArea.setText("0.");
    flag = true;//to force the operations to jump to operand 1 and go through the loop as normal
    if (stringInput == "MR")
    if (var1 != 0)
    txtArea.setText(Double.toString(var1));
    mArea.setText("M");
    System.err.println("mem@operand1 >> "+ mem );
    else if (var2 != 0)
    txtArea.setText(Double.toString(var2));
    mArea.setText("M");
    System.err.println("mem @ mR else>> "+ mem );
    if (stringInput == "MS")
    mArea.setText("M");
    if (operand1 != "")
    mem = var1;
    else if (operand2 != "")
    mem = var2;
    else
    mem = 0;
    if (stringInput == "MC")
    mArea.setText("");//to clear the text area display
    mem = 0;//to reset the variable
    if (stringInput == "M+")
    mArea.setText("M");
    flag = true;//to force the operations to jump to operand 2 and go through the loop as normal
    if (stringInput == "=")
    //result = evaluate();
    txtArea.setText(Double.toString(result));
    System.out.println("Equals>>" +stringInput);
    System.out.println("Equals>>" +pre);
    System.err.println("The flag at equals is " + flag);
    if (stringInput == "+"||stringInput == "-"||stringInput == "/"||
    stringInput == "*"||stringInput == "=")
    pre = pre.concat(stringInput);
    System.out.println("Second action perfo/check for operator>>" +stringInput);
    System.out.println("Second pre action perfo/check for operator>>" +pre);
    operand2 = "";
    System.err.println("The flag at +,- etc is " + flag);
    if(!flag &&(stringInput == "*"|| stringInput == "/"))
    var2 = 1;
    stringInput = "";
    flag = true;
    if(!flag)
    stringInput = pre;
    System.out.println("if flag true/stringInput" +stringInput);
    System.out.println("flag true/pre" +pre);
    else
    //These statements extract the operator
    stringInput = pre.valueOf(pre.charAt(pre.length()-2));
    ch = pre.charAt(pre.length()-2);
    System.out.println("@ position -2 stringInput" + pre.valueOf(pre.charAt(pre.length()-2)));
    System.out.println("@ position -2 pre" + pre.charAt(pre.length()-2));
    result = evaluate();
    var2 = 0;
    operand2 = "";
    txtArea.setText(Double.toString(result));
    System.out.println("Total is " + result);
    flag = true;
    if(!flag &&(stringInput == "*"|| stringInput == "/"))
    var2 = 1;
    stringInput = "";
    flag = true;
    if (stringInput == "%")
    //evaluate();
    txtArea.setText(Double.toString(result));
    System.err.println("mem @ mR else>> "+ result + " %" );
    if (stringInput == "1/x")
    if (operand1 != "")
    txtArea.setText(Double.toString(1/var1));
    //System.err.println("mem@operand1 >> "+ mem );
    else if (operand2 != "")
    operand2 = "";
    txtArea.setText(Double.toString(1/var2));
    //System.err.println(">> "+ mem );
    if (Character.isDigit(stringInput.charAt(0))||stringInput == ".")
    System.out.println(operand1);
    if (stringInput == "." && operand1 == "")
    operand1 = "0";
    System.out.print("fail op1");
    if (stringInput == "." && operand2 == "")
    System.out.print("fail op2");
    operand2 = "0";
    if (flag==false)
    operand1 = operand1.concat(stringInput);
    result = Double.parseDouble(operand1);
    System.out.println("op1 =>" + operand1);
    txtArea.setText(operand1);
    //result = var1;
    System.out.println("result after var1 = result " + result);
    else
    operand2 = operand2.concat(stringInput);
    var2 = Double.parseDouble(operand2);
    //var2 = vMod;
    System.out.println("op2 =>" + operand2);
    txtArea.setText(" ");//to clear the text area
    txtArea.setText(operand2);//to display the second number if (operators == "+")
    System.out.println("result after var2 " + result);
    public double evaluate()
    if (ch == '+' )
    result = result + var2;
    if (ch == '-' )
    result = result - var2;
    if (ch == '/' )
    result = result / var2;
    if (ch == '*' )
    result = result * var2;
    if (ch == '%')
    var2 = Double.parseDouble(operand2);
    result = result/vMod*100;
    System.out.println("% "+ result);
    return result;
    public static void main(String [] args)
    Calctester x = new Calctester();
    }

  • Capture keyboard input

    I have a swing app that will run on a touch screen. There will be no keyboard. I will have a magnetic card reader plugged into the ps/2 port.
    Basically I need to capture the output of the magnetic card reader. At the moment when a card is swiped it goes in the first JTextfield.
    Now I can capture the output outside of swing by using
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    String data = stdin.readLine();
    System.out.println(m_data);
    However this does not work inside of swing or at least my swing app.
    So in swing, how can I capture or redirect text input?
    I guess I could write a fuction that appends a character each time a key event occurs like KeyTyped. However I am not sure that is the most efficient way to go about it.

    A document listner might work, however I think that url you posted also shows a way using an action listner.
    Something I forgot to mention was, when I swipe the card I do not want the card's data placed in a JTextField.
    To the point when a card is swiped I want the data in a string.
    At the moment when I swipe a card it goes into a JTextfield. I do not want that to be the case. Sure I can make a way around it with a hidden text field or something, and use a listner for events on the text field.
    However I do not think that is the proper way to go about this.
    So I am looking for an event that will be fired or take place as soon as there is input from the keyboard/card reader. I do not want a JTextField to even have the chance to grab and display that data. I want to know first, and take that data and do something else with it.
    In detail, when a card is swipped, the data will be parsed and JTextFields will display the parsed information. However I need to be the first one receiving the data, not any of the JTextFields in my app.
    The app does not require use of a keyboard. If possible I would like the app to not work at all with a keyboard, and any input from a keyboard or card reader is calling my own code to deal with those events.
    So if someone does plug in a keyboard, I do not want them to be able to do anything. That's not a must, but if I can accomplish it with the above I will be a happy camper.
    In short I need to capture all input from the ps/2 port, and be notified with input starts and ends. Or at least when it ends.
    Any suggestions are greatly appreciated.

  • TS3280 How can i enable both paired bluetooth and ios keyboard input at the same time?

    How can i enable both paired bluetooth and ios keyboard input at the same time?
    This is needed for the app im working on. Need some user input via keypad as well as scanner input via a paired bluetooth scanner.

    You probably should not be using a keyboard bluetooth profile for a scanner, I am not a developer for apple so do not know the location for you to find out the correct profile you should be using for an input device that is not a keyboard. Sorry,
    I am sure if you navigate the apple developer site you will probaly finmd what you're looking for.
    https://developer.apple.com

  • Installed rdesktop - but keyboard input still goes to Mac Terminal??

    My work PC has been "upgraded" to Windows 7 which made the Microsoft Remote Desktop Connection v2.0.1 stop working (it connects OK, I can login and see my work PC screen, but as soon as I try to do something I am "disconnected" from the PC).  I can't install RDC 2.1 because I have a PPC G5.
    So I searched for alternative remote desktop apps.  Cord 0.5.0 crashes on my machine and 0.5.5 won't even start up.
    I ended up installing rdesktop (www.rdesktop.org)
    It looks promising - very fast, and gets me to my PC login screen.  My mouse pointer can click on the screen buttons, but any keyboard input appears in my G5 Terminal window and is not sent to the Windows 7 PC.  This makes it impossible to enter my Windows 7 password to login!
    I'm sure this is a simple problem to solve but I have no idea on how to solve it.
    Any clues appreciated.  Thanks.

    Try:
    rdesktop -x m -r clipboard:"CLIPBOARD" -g 1280x1024 -u<username> <hostip>
    I do recommend using ssh tunnel for RDP over internet. Is more secure and limits open ports to only ssh port in firewall.
    There are instructions about on how to use cygwin with RSA key login, turn off ssh password login when working properly.

  • Take printscreen and detect mouse/keyboard input

    hi guys,
    I'm looking a way to take printsceen and detecting mouse/keyboard input in Adobe Air app using html/ajax .. is it possible ?
    any ideas ..please

    I wrote a blog post on how to do screen capturing using Adobe AIR abnd HTML/JavaScript. Maybe it'll help you out:
    http://www.andymatthews.net/read/2009/11/05/Capture-BitmapData-with-JavaScript-AIR-applica tions
    As for detecting key input, you can add a keydown/keydown event to the document quite easily.
    document.addEventListener('keydown', function(evt){
         // do something

  • Reader Closes on any Keyboard input

    Has anyone had this problem?
    Reader closes on any keyboard input.
    Mouse works fine.  And I mean any keyboard action at anytime.
    I have tried uninstalling all adobe reader apps/plugins and reinstalling the latest available version but still Reader closes with any keyboard input.   Make opening password protected PDF's impossible.  The "find" function unusable.
    Any Ideas?

    Are you trying to run your application through TextPad, or some IDE? The System.in is best for command prompt input. Trying running your program through the command prompt, and it should work fine.
    I replicated your error, running your application through TextPad.

  • Emulate Keyboard Input?

    Using the commapi, I can get input from a serial device. Is it possible to pass that to the OS as keyboard input? Basically, I want to listen on a port and pass input data to whatever the current application is - web browser, notepad, C app, another Java app.
    Thanks in advance for any ideas!

    I believe the java.awt.Robot class will help

Maybe you are looking for