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• Kernel Panic every time I open a print queue

  - by Gray

  Every time I open any printer queue I get a kernel panic and have to reboot. It's quite frustrating. I've tried removing/adding printers, clearing all caches with Onyx, repairing permissions, all manner of things to no avail. Any tips would be greatly appreciated! ==== CRASH REPORT ==== Interval Since Last Panic Report: 25551 sec Panics Since Last Report: 1 Anonymous UUID: 322E8128-0027-4C2F-9264-6A9D9F1BD13E Thu Aug 27 10:04:23 2009 panic(cpu 0 caller 0x001AB0FE): Kernel trap at 0x00233080, type 14=page fault, registers: CR0: 0x8001003b, CR2: 0x00000008, CR3: 0x01157000, CR4: 0x00000660 EAX: 0x00000000, EBX: 0x03f05df0, ECX: 0x2ad007fd, EDX: 0x2ad02d2d CR2: 0x00000008, EBP: 0x2e6abb78, ESI: 0x03f136a0, EDI: 0x03f13640 EFL: 0x00010206, EIP: 0x00233080, CS: 0x00000008, DS: 0x01a70010 Error code: 0x00000000 Backtrace (CPU 0), Frame : Return Address (4 potential args on stack) 0x2e6ab998 : 0x12b4c6 (0x45f91c 0x2e6ab9cc 0x13355c 0x0) 0x2e6ab9e8 : 0x1ab0fe (0x469a98 0x233080 0xe 0x469248) 0x2e6abac8 : 0x1a1713 (0x2e6abae0 0x206 0x2e6abb78 0x233080) 0x2e6abad8 : 0x233080 (0xe 0x3e10048 0x4570010 0x96d0010) 0x2e6abb78 : 0x27866c (0x3f05df0 0x0 0x4ec4 0x3f136a0) 0x2e6abbc8 : 0x249d53 (0x3f13640 0x3e17464 0x55c160 0x3034ed5c) 0x2e6abdc8 : 0x24bb59 (0x3034ed00 0x28 0x9 0x0) 0x2e6abde8 : 0x270186 (0x2e6abe70 0x2e6abe44 0x8 0x0) 0x2e6abe68 : 0x22ca5f (0x3034ed00 0x3034ed00 0x2e6abea8 0xffffffff) 0x2e6abea8 : 0x21b36e (0x1e 0x3034ed00 0x246 0x0) 0x2e6abec8 : 0x217591 (0x3f65c04 0x1e 0x3034ed00 0x3ef2c2) 0x2e6abef8 : 0x217cea (0x530d64 0x4037808 0x3034ed40 0x2e6abf4c) 0x2e6abf68 : 0x217f1b (0x3f65c04 0x3034ed00 0x0 0x530de8) 0x2e6abfc8 : 0x1a14fc (0x530dc0 0x0 0x1a40b5 0x3dd95d0) Backtrace terminated-invalid frame pointer 0 BSD process name corresponding to current thread: kernel_task Mac OS version: 9L31a Kernel version: Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 System model name: MacBook4,1 (Mac-F22788A9) System uptime in nanoseconds: 30555146093771 unloaded kexts: com.apple.iokit.IOUSBMassStorageClass 2.0.8 - last unloaded 26709525128459 loaded kexts: com.vmware.kext.vmnet 2.0.5 com.vmware.kext.vmioplug 2.0.5 com.vmware.kext.vmci 2.0.5 com.vmware.kext.vmx86 2.0.5 com.apple.driver.iTunesPhoneDriver 1.0 - last loaded 981750246502 com.apple.iokit.IOUSBMassStorageClass 2.0.8 com.apple.filesystems.msdosfs 1.5.5 com.apple.iokit.IOBluetoothSerialManager 2.1.8f2 com.apple.filesystems.autofs 2.0.2 com.apple.driver.AppleHWSensor 1.9d0 com.apple.driver.AppleHDA 1.7.1a2 com.apple.driver.AppleUpstreamUserClient 2.7.5 com.apple.Dont_Steal_Mac_OS_X 6.0.3 com.apple.iokit.CHUDUtils 201 com.apple.iokit.CHUDProf 211 com.apple.driver.AppleIntelGMAX3100 5.4.8 com.apple.driver.AppleIntelGMAX3100FB 5.4.8 com.apple.driver.AppleHDAController 1.7.1a2 com.apple.iokit.IOFireWireIP 1.7.7 com.apple.driver.AppleIRController 113 com.apple.driver.AudioIPCDriver 1.0.6 com.apple.driver.ACPI_SMC_PlatformPlugin 3.4.0a17 com.apple.driver.AppleLPC 1.3.1 com.apple.driver.AppleBacklight 1.6.0 com.apple.driver.SMCMotionSensor 2.1.1d2 com.apple.driver.AppleUSBTrackpad 1.7.4f1 com.apple.driver.AppleUSBTCKeyEventDriver 1.7.4f1 com.apple.driver.AppleUSBTCKeyboard 1.7.4f1 com.apple.driver.CSRUSBBluetoothHCIController 2.1.8f2 com.apple.driver.AppleUSBMergeNub 3.4.6 com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.1.1 com.apple.iokit.SCSITaskUserClient 2.1.1 com.apple.driver.XsanFilter 2.7.91 com.apple.iokit.IOATAPIProtocolTransport 1.5.3 com.apple.iokit.IOAHCIBlockStorage 1.2.2 com.apple.driver.AppleUSBHub 3.4.9 com.apple.iokit.IOUSBUserClient 3.4.9 com.apple.driver.AppleAHCIPort 1.7.0 com.apple.driver.AppleIntelPIIXATA 2.0.1 com.apple.driver.AppleFWOHCI 3.9.7 com.apple.driver.AppleUSBEHCI 3.4.6 com.apple.driver.AppleEFINVRAM 1.2.0 com.apple.iokit.AppleYukon2 3.1.13b2 com.apple.driver.AirPortBrcm43xx 366.91.21 com.apple.driver.AppleUSBUHCI 3.3.5 com.apple.driver.AppleSmartBatteryManager 158.10.5 com.apple.driver.AppleRTC 1.2.3 com.apple.driver.AppleHPET 1.4 com.apple.driver.AppleACPIPCI 1.2.5 com.apple.driver.AppleACPIButtons 1.2.5 com.apple.driver.AppleSMBIOS 1.4 com.apple.driver.AppleACPIEC 1.2.5 com.apple.driver.AppleAPIC 1.4 com.apple.security.seatbelt 107.12 com.apple.nke.applicationfirewall 1.6.77 com.apple.security.TMSafetyNet 3 com.apple.driver.AppleIntelCPUPowerManagement 76.2.0 com.apple.driver.DiskImages 199 com.apple.BootCache 30.4 com.apple.iokit.IOSerialFamily 9.4 com.apple.driver.DspFuncLib 1.7.1a2 com.apple.iokit.CHUDKernLib 201 com.apple.iokit.IOHDAFamily 1.7.1a2 com.apple.iokit.IOAudioFamily 1.6.9fc5 com.apple.kext.OSvKernDSPLib 1.1 com.apple.driver.IOPlatformPluginFamily 3.4.0a17 com.apple.iokit.IONDRVSupport 1.7.3 com.apple.iokit.IOGraphicsFamily 1.7.3 com.apple.driver.AppleSMC 2.3.1d1 com.apple.iokit.IOUSBHIDDriver 3.4.6 com.apple.driver.AppleUSBBluetoothHCIController 2.1.8f2 com.apple.iokit.IOBluetoothFamily 2.1.8f2 com.apple.driver.AppleUSBComposite 3.2.0 com.apple.iokit.IOSCSIBlockCommandsDevice 2.1.1 com.apple.iokit.IOBDStorageFamily 1.5 com.apple.iokit.IODVDStorageFamily 1.5 com.apple.iokit.IOCDStorageFamily 1.5 com.apple.iokit.IOSCSIArchitectureModelFamily 2.1.1 com.apple.iokit.IOAHCIFamily 1.5.0 com.apple.iokit.IOATAFamily 2.0.1 com.apple.iokit.IOFireWireFamily 3.4.9 com.apple.iokit.IO80211Family 216.1 com.apple.iokit.IONetworkingFamily 1.6.1 com.apple.iokit.IOUSBFamily 3.4.9 com.apple.driver.AppleEFIRuntime 1.2.0 com.apple.iokit.IOSMBusFamily 1.1 com.apple.iokit.IOStorageFamily 1.5.6 com.apple.iokit.IOHIDFamily 1.5.5 com.apple.driver.AppleACPIPlatform 1.2.5 com.apple.iokit.IOACPIFamily 1.2.0 com.apple.iokit.IOPCIFamily 2.6 Macbook Black Mac OS X (10.5.8)

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• LSI MegaRAID Expected Chip Temperature?

  - by Myles Gray

  We recently built a replicating SAN array from 2x Dell R720XD's, we are using LSI 9270-8i MegaRAID cards with CacheCade 2.0, BBU and Write Back cache enabled. Our cards are showing HUGE chip temperatures (97*C+ with NO disk activity!). Our R720's are in auto temp management mode so the max exhaust temp is 50*C. The MegaRAID cards are passively cooled and depend on good airflow to cool them - however is 97*C normal? - I have seen reference to 60*C max ambients but nothing for chip temp.

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• Enabling syntax highlighting for LESS in Programmer's Notepad?

  - by Cody Gray

  When I don't feel like firing up the Visual Studio behemoth, or when I don't have it installed, I always turn to Programmer's Notepad. It's an amazingly light and fast little text editor, with the special advantage that it is completely platform-native and conforms to standard UI conventions. Therefore, please do not suggest that I consider using other text editors. I've already considered and rejected them because they do not use native UI controls. I like Programmer's Notepad, thank you very much. Unfortunately, I've recently begun to learn, use, and love LESS for all of my CSS coding needs, and it appears that Programmer's Notepad is not bundled with a syntax highlighting scheme for LESS. Does anyone know if there is—by chance and good fortune—one already available somewhere on the web that some kind soul has tediously prepared? If not, how can I go about writing one of my own? Is there a way to build on the existing CSS scheme? It's also possible that any code coloring scheme designed for Scintilla-based editors will work, as Programmer's Notepad is based on the Scintilla control. If you know of a LESS highlighting scheme for Scintilla-based editors, and how to use that with Programmer's Notepad, please suggest that as well.

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• DNSCurve vs DNSSEC

  - by Bill Gray

  Can someone informed, please give a lengthy reply about the differences and advantages/disadvantages of both approaches? I am not a DNS expert, not a programmer. I have a decent basic understanding of DNS, and enough knowledge to understand how things like the kaminsky bug work. From what I understand, DNSCurve has stronger encryption, is far simpler to setup, and an altogether better solution. DNSSEC is needlessly complicated and uses breakable encryption, however it provides end to end security, something DNSCurve does not. However, many of the articles I have read have seemed to indicate that end to end security is of little use or makes no difference. So which is true? Which is the better solution, or what are the disadvantages/advantages of each? edit: I would appreciate if someone could explain what is gained by encrypting the message contents, when the goal is authentication rather than confidentiality. The proof that keys are 1024bit RSA keys is here.

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• Is there a way to make software available for remote installation in Windows Server?

  - by Michael J. Gray

  I've heard of folks having a sort of "software repository" which contains a database of product keys and then network installation media for operating systems and other Microsoft software, such as Office. With this, they were then able to join a computer to the domain and grant that user privileges to a set of software and then the client was able to use it either remotely or locally on their machine. I believe it installed from the server on to their local machine. Does anyone happen to know what this is?

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• How can artificially create a slow query in mysql?

  - by Gray Race

  I'm giving a hands on presentation in a couple weeks. Part of this demo is for basic mysql trouble shooting including use of the slow query log. I've generated a database and installed our app but its a clean database and therefore difficult to generate enough problems. I've tried the following to get queries in the slow query log: Set slow query time to 1 second. Deleted multiple indexes. Stressed the system: stress --cpu 100 --io 100 --vm 2 --vm-bytes 128M --timeout 1m Scripted some basic webpage calls using wget. None of this has generated slow queries. Is there another way of artificially stressing the database to generate problems? I don't have enough skills to write a complex Jmeter or other load generator. I'm hoping perhaps for something built into mysql or another linux trick beyond stress.

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• ESXi boot time with 9 iSCSI targets

  - by Myles Gray

  Our ESXi hosts have always been slow booting when it came to iscsi_vmk loaded successfully - sitting here for almost 5 minutes. In all a full server reboot takes almost 12 minutes. We have 9 iSCSI targets per host (5 SANs with redundant interfaces) configured as dynamic discovery targets. Has anyone experienced this? Can it be remedied with static discovery mode? Are there any debug steps we can work through to help diagnose this? (All our targets are accessible at boot so i'm assuming the host isn't stuck retrying to connect to a target)

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• Best way to provide redundant switching/links to server

  - by Myles Gray

  We have 3x ESX hosts and 2x SANS that we wish to move to a redundant 10G networking infrastructure. We have 4x Dell PowerConnect 8024F's to provide our backbone and are configured as so (only core switches relevant to this question): So the questions are: 1) Do the interconnects between the 4x 8024F's need to be LAG'd or just STP'd 2) As the NICs on the servers are split across 2 switches, does any special configuration need to be done here or on the switches? 3) If a link or switch fails will the switches automatically find a new path to the Server/SAN?

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• How do I restore a Windows Server 2008 R2 bare metal backup to a Windows Server 2012 R2 Hyper-V instance?

  - by Michael J. Gray

  I have been trying to find a simple way to migrate a physical Windows Server 2008 R2 installation over to a virtual machine hosted on Windows Server 2012 R2 Datacenter Edition /w Hyper-V. I came across the bare metal backup feature on Windows Server 2008 R2 and assumed I would be able to easily back it up and simply restore it into a new virtual machine by booting the installation media and getting into the Windows recovery process. When I attempted this, Hyper-V got into a network based restore process, but I do not have a PXE server or anything like that and I would rather not set it up. I tried mounting the VHD produced in the bare metal backup, just to see if it would somehow work, but it of course did not and failed with an error related to an incorrect boot device. I checked the virtual machine's BIOS settings and everything looked fine. I did not expect this to work anyway, so I stopped working through this method any further. Is there a way to take my bare metal backup and restore it into a virtual machine without a PXE server or SCVMM? I am opening to using proprietary tools but since the last time I did this I used Norton Ghost, which is no longer supported, I figured I would try doing it with what is readily available.

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• Configure spamassassin to mark very similar messages as spam

  - by Caleb Gray

  Users on my server have been receiving spam, consistently, for some time now. I have most of spamassassin's plugins enabled, and I have made sure to enable verbose logging, where I can see that all of the plugins are working. Why is it, then, that my users are able to receive the same exact junk mail several times in a day without the message being flagged in some way? Here are the relevant headers of an email that I personally have received several copies of: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on sub.domain.tld X-Spam-Level: *** X-Spam-Status: No, score=3.0 required=4.0 tests=BAYES_50,FSL_HELO_NON_FQDN_1, HELO_NO_DOMAIN,HTML_MESSAGE,RCVD_IN_BRBL_LASTEXT,RDNS_NONE autolearn=no version=3.3.1 Have I accidentally missed the plugin that can see that I, and others, have received the same message multiple times in a short period of time?

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• gl_FragColor and glReadPixels

  - by chun0216

  I am still trying to read pixels from fragment shader and I have some questions. I know that gl_FragColor returns with vec4 meaning RGBA, 4 channels. After that, I am using glReadPixels to read FBO and write it in data GLubyte *pixels = new GLubyte[640*480*4]; glReadPixels(0, 0, 640,480, GL_RGBA, GL_UNSIGNED_BYTE, pixels); This works fine but it really has speed issue. Instead of this, I want to just read RGB so ignore alpha channels. I tried: GLubyte *pixels = new GLubyte[640*480*3]; glReadPixels(0, 0, 640,480, GL_RGB, GL_UNSIGNED_BYTE, pixels); instead and this didn't work though. I guess it's because gl_FragColor returns 4 channels and maybe I should do something before this? Actually, since my returned image (gl_FragColor) is grayscale, I did something like float gray = 0.5 //or some other values gl_FragColor = vec4(gray,gray,gray,1.0); So is there any efficient way to use glReadPixels instead of using the first 4 channels method? Any suggestion? By the way, this is on opengl es 2.0 code.

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• Why do some machines respond with many RST packets instead of RST-ACK to refuse a connection?

  - by Michael J. Gray

  I have recently been trying to track down a problem with one of our systems and have noticed that it is simply not allowed to connect to a remote machine. However, the remote machine (not controlled by us) is responding to our request for a connection with many TCP RST packets on a different port (26469, 26497, 26498) than the one we originated on (53). It simply wouldn't let up at one point and flooded us with about 10 packets/second for an hour or two of only RST on those obscure high ports. Out of the thousands of nodes we're connecting to, this is the only one ever to show this behavior. What could possibly cause this? EDIT Below is a screenshot of Wireshark when it happened. I don't have the actual dump anymore and can't reproduce this specific scenario every time. Basically, we sent a SYN and immediately got RST on an odd port and so we respond with RST and just keep going back and forth.

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• Server market shares

  - by Bill Gray

  here can I find somewhat reliable indications of server market shares, without having to fork out $$$$$ for IDC or Gartner reports? I have considered the W3 statistics, net applications etc, and these are not what I would consider reliable. Is there anything more, that is free?

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• What special configuration is needed to have a domain controller with DNS on a VM in Hyper-V?

  - by Michael J. Gray

  I have a server running Windows Server 2012 and it only has the Hyper-V role. I have a VM also running Windows Server 2012 and it has the Active Directory: Directory Services and DNS ([example.com]) roles. It has been promoted to a domain controller for [example.com]. In the virtualization host I have joined the domain successfully. On a laptop on the network, it can ping my DNS that is inside the VM on the virtualization host. However, it can't resolve anything through the DNS. I figured it was a firewall issue where the DNS had the firewall allow rule, but the virtualization host did not. I added that, but it didn't fix the issue. On my laptop, I get "UnKnown can't find [example.com]: No response from server" immediately. There's no time out, it just comes back right away. What have I overlooked?

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• How do I listen to my microphone through my speakers in Windows 7?

  - by Gray Adams

  I've looked about and before you say it: I've used the "Listen to this device" feature built into Windows. The issue is that it is a USB microphone and there is a second delay before when it plays on the speakers, literally making me go quiet because my brain doesn't work too well hearing myself a second after I say something. I use Realtek Audio, so it works differently from the monopolistic Creative sound cards. There is no "What U Hear" or "Line In" levels. It's just "Speakers" and "Microphone". Is there a software I can use that will not have delay? I want to wear nice headphones and still hear myself

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• jQuery slideToggle stay open on hover

  - by durilai

  I have a div that I have bound the jQuery hover event to activate a slideDown using slideToggle: <div class="Square"> <div class="RedSquare"></div> <div class="GraySquare"></div> </div> $("div.RedSquare").hover( function() { $(this).siblings("div.GraySquare").slideToggle("fast"); }, function() { $(this).siblings("div.GraySquare").slideToggle("fast"); } ); It toggles a div '.GraySquare' right below it. Basically making a gray box slide down from the red box. The problem I am facing is that when the mouse moves over the gray div the slide toggles up. I want it to remain down when hovering over the red or gray square. Any help is appreciated.

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• Create a bitonal image for OCR using Image Magick

  - by Greg

  nice /usr/local/bin/convert -colors 2 -colorspace gray -compress group4 /var/www/html/uploads/pokemon.jpg /var/www/html/uploads/pokemontest.jpg This command worked with a really OLD version of Image Magick. With the newest version this method produces a completely black image. nice /usr/local/bin/convert -colorspace gray -compress group4 /var/www/html/uploads/pokemon.jpg /var/www/html/uploads/pokemontest.jpg nice /usr/local/bin/convert -colors 2 /var/www/html/uploads/pokemontest.jpg /var/www/html/uploads/pokemontestfinal.jpg This results in a bitonal gray and black image, but it's really rough. NOT clean at all.

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• How to achieve the recessed text style as in Apple's Messages for Mac?

  - by Thruth

  I'd like to replicate the recessed text style of Messages/iMessage, or, the text "white-shadow" style on a light gray background. Please refer to an image here for the style I desire. As you can see, the texts are with "white-shadow" even on the light gray background. The bold texts do have subpixel rendering while the gray texts don't (by design?). I've tried setBackgroundStyle:NSBackgroundStyleRaised . However it was generating shadows darker than the background. setBackgroundStyle:NSBackgroundStyleLowered was worse that it even overrode my font colour setting. So, what is the right way to do this? Any tricks or just have to subclass NSTextFields ? Thanks.

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• iPad/iPhone Dev: displayViewController Is Rendering Portrait in Landscape Orientation

  - by Holly

  -(void)displayFirstScreen { UIViewController *displayViewController=[[UIViewController alloc] init]; displayViewController.view = displaySplash; [self presentModalViewController:displayViewController animated:NO]; [self performSelector:@selector(removeScreen) withObject:nil afterDelay:2.0]; [displayViewController release]; } -(void)removeScreen { [[self modalViewController] dismissModalViewControllerAnimated:YES]; } The above code works but my orientation is landscape and the view comes and goes in portrait. Any ideas? Thanks in advance!

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• How many layers is too many?

  - by Nathan

  As I have been learning about software development the last 2 years the more I learn, it seems the more gray areas I am running into. One gray area I have issues with right now is trying to decide how many layers an application should have. For example, in a WPF MVVM application what fashion of layering is ok? Is the following too separated? When I mention layering I mean creating a new class library for each layer. Presentation (View) View Model Business Layer Data Access Model Layer Utility Layer Or for a non MVVM application is this too separated? Presenation Business Data Access Model Layer Utility Layer Is acceptable to run layers together and just create folders for each layer? Any coloring of this gray area would be appreciated.

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• Java: Help constructing a fillTextFields() method

  - by Holly

  I have a Java project where I am to connect to a database and create buttons (next, new, save, delete, previous) to navigate through the database content where there are appropriate text fields and labels for the specific information. I'll use the code below as an example (each button is set up very similar)... I have it as follows: JButton jbtnNext = new JButton("Next ->"); jbtnNext.addActionListener(this); if (e.getSource() == jbtnNext) jbtnNext_Click(); private void jbtnNext_Click() { JOptionPane.showMessageDialog(null, "Next" ,"Button Pressed", JOptionPane.INFORMATION_MESSAGE); try { if (rset.next()) { fillTextFields(true); }else{ //Display result in a dialog box JOptionPane.showMessageDialog(null, "Not found"); } } catch (SQLException ex) { ex.printStackTrace(); } } The professor gave the following outline of logic to construct the fillTextFields() method: Construct the method to provide reusable code that would fill the JTextFields on the GUI with appropriate values from current record from the database (when "Previous or "Next" buttons are pressed) or blank values (when the new Button is pressed). To determine when the current record was to provide values (next and previous) or the value would be blank (new button) pass a boolean argument into the method. If data from the current record was to be used as fill values, pass true for both previous and next button code after moving the record pointer. If the new button was pressed and want to fill with blank values, pass false to the method. Inside the method, use a conditional expression to evaluate the boolean variable. If true, The appropriate get----() resultset method is used to fill the JTextFields. If false, fill them with "". The .setText() method of the JTextField is used to fill each JTextField. Make sure the fillTextFields method throws the appropriate exception. I understand and have the previous and next button methods passing true, while the new button method is passing false, but I don't quite understand how to set up the fillTextFields() method correctly or how to "throw the appropriate exception"... Any help would really be appreciated, thank you!

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• Simplest way of creating java next/previous buttons

  - by Holly

  I know that when creating buttons, like next and previous, that the code can be somewhat long to get those buttons to function. My professor gave us this example to create the next button: private void jbtnNext_Click() { JOptionPane.showMessageDialog(null, "Next" ,"Button Pressed", JOptionPane.INFORMATION_MESSAGE); try { if (rset.next()) { fillTextFields(false); }else{ //Display result in a dialog box JOptionPane.showMessageDialog(null, "Not found"); } } catch (SQLException ex) { ex.printStackTrace(); } } Though, I do not really understand how that short and simple if statement is what makes the next button function. I see that the fillTextFields(false) uses a boolean value and that you need to initialize that boolean value in the beginning of the code I believe. I had put private fillTextFields boolean = false; but this does not seem to be right... I'm just hoping someone could explain it better. Thanks :)

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• How to create initializeDB() method for java database

  - by Holly

  I am working on a Java project for class and have not worked much with incorporating databases into Java. I can't find much on the initializeDB() method, but if I could get some help I would really appreciate it. Below is the code being used for the intializeDB() method: private void initializeDB() { try { // Load the JDBC driver System.out.println("Driver loaded"); // Establish a connection System.out.println("Database connected"); // Create a statement // Create a SQL Query string // Execute the query to create a recordset } catch (Exception ex) { ex.printStackTrace(); } }

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• Why am I getting a ClassCastException here?

  - by Holly

  I'm creating an android application and i'm trying to use a PreferenceActivity. I'm getting the java.lang.ClassCastException: java.lang.String error when it gets to this line return PreferenceManager.getDefaultSharedPreferences(context).getInt(USER_TERM, USER_TERM_DEF); I thought it might be because I'm not converting it properly from it's string value in the EditText box to the int I need but I can't figure out how to fix this, or is that even the cause? I'm flummoxed. Here's my preference activity class: public class UserPrefs extends PreferenceActivity { //option names and default vals private static final String USER_TERM = "term_length"; private static final String USER_YEAR = "year_length"; private static final int USER_TERM_DEF = 12; private static final int USER_YEAR_DEF = 34; @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); } public static int getTermLength(Context context){ try{ return PreferenceManager.getDefaultSharedPreferences(context).getInt(USER_TERM, USER_TERM_DEF); }catch (ClassCastException e){Log.v("getTermLength", "error::: " + e); } //return 1;//temporary, needed to catch the error and couldn't without adding a return outside the block.// } public static int getYearLength(Context context){ return PreferenceManager.getDefaultSharedPreferences(context).getInt(USER_YEAR, USER_YEAR_DEF); } And here's the bit of code where I'm trying to use the the preferences inside another class: public float alterForFrequency(Context keypadContext, float enteredAmount, String spinnerPosition){ int termLength = UserPrefs.getTermLength(keypadContext); int yearLength = UserPrefs.getYearLength(keypadContext); } The complete android logcat, i've uploaded here: http://freetexthost.com/v3t4ta3wbi

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• Autostart app with proper icon in unity launcher

  - by kyleN

  One can autostart an application such that it launches on session start with an xdg desktop file in ~/.config/autostart (or /etc/xdg/autostart). But my application (a python/gtk/webkit/html5 app) when autostarted has a unity (and a unity-2d) launcher icon that is a gray question mark, even though: when I find it in dash, the dash shows the icon I specify in my main desktop file (in /usr/share/applications) when I launch it from dash, the launcher shows the icon I specify in my main desktop file when I add it as a favorite, the launcher shows the proper icon There are two cases where I get the gray question mark icon: autostart launch from terminal (this use case is not essential though and doesn't involve the desktop file anyway: but should/does ubuntu have an xdg desktop file interpreter à la #!/usr/bin/desktop or something) So: what is needed such unity (3d/2d) launcher panel shows the icon specified in an autostart desktop file?

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