Search Results

Search found 5057 results on 203 pages for 'force'.

Page 112/203 | < Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >

  • How to avoid jumping to a solution when under pressure? [closed]

    - by GlenPeterson
    When under a particularly strict programming deadline (like an hour), if I panic at all, my tendency is to jump into coding without a real plan and hope I figure it out as I go along. Given enough time, this can work, but in an interview it's been pretty unsuccessful, if not downright counter-productive. I'm not always comfortable sitting there thinking while the clock ticks away. Is there a checklist or are there techniques to recognize when you understand the problem well enough to start coding? Maybe don't touch the keyboard for the first 5-10 minutes of the problem? At what point do you give up and code a brute-force solution with the hope of reasoning out a better solution later? When is it most productive to think and design more vs. code some experiments to and figure out the design later? Here is a list of techniques for taking a math test and another for taking an oral exam. Is there is a similar list of techniques for handling a programming problem under pressure? ANSWERS: I think this is a valid answer: How To Solve It. I found the link as an answer to Steps to solve or approach towards a solution. There were also some really good tips at Is thinking out loud during an interview really the best strategy?. A great and concise argument for TDD is the first answer to TDD Writing code vs Figuring out the answer to a problem?. My question may be a near-duplicate of that one.

    Read the article

  • Weird UIView transforms in Retina iPhone

    - by ggambett
    I'm having a problem I don't understand. I'm developing an OpenGL app for iOS. Because at some points I want to force the orientation of the view programatically, and Apple for whatever reason doesn't make it easy (or even possible), I'm doing it by hand. I return always NO in shouldAutoRotateToInterfaceOrientation, and when I want to change the orientation (to portrait, for example), I do something like this in the UIView: [self setTransform:CGAffineTransformMake(1, 0, 0, 1, 0, 0)]; [self setBounds:CGRectMake(0, 0, 768, 1024)]; This works fine. In order to support Retina devices, I started checking [UIScreen mainScreen].scale, and setting self.contentScaleFactor accordingly. I also modified the code above to account for the new dimensions, like this: [self setTransform:CGAffineTransformMake(1, 0, 0, 1, 0, 0)]; [self setBounds:CGRectMake(0, 0, 2*768, 2*1024)]; Same rotation, different size. The weird result with this is that I get a "screen" with the right size, but offsetted half a screen to the bottom and the left. To correct for this, I need to do the following: [self setTransform:CGAffineTransformMake(1, 0, 0, 1, 0, 0)]; [self setBounds:CGRectMake(-768, -1024, 2*768 - 768, 2*1024 - 1024)]; This works, but it's ugly, I also need to make similar corrections when I get touch coordinates, and worst of all, I don't understand what's going on or why the above "correction" works. Can anyone shed some light on this issue?

    Read the article

  • Login takes very long, annoying repaints once a minute when logged in: How to troubleshoot?

    - by user946850
    I am suffering from a strange problem with my Gnome Shell in Ubuntu 12.10. The login takes very long ( 30 sec), with a blank screen. In Google Chrome and Thunderbird (and perhaps in other applications), the main window freezes and is repainted in periodic intervals of less than one minute. The freeze takes several seconds, and it seems that font and appearance of, e.g., tabs and buttons briefly changes. Attempting to enable the second monitor show an error message related to XRANDR. Everything seems to have started three days ago, after I had to force-shutdown the machine while it was hibernating due to low power. (It was hibernating for quite a while and didn't want to stop.) Silly me. I have tried the following measures, with no avail: Checked all package file md5 hashes using debsums Reinstalled all packages using a variant of dpkg --get-selection \* | xargs apt-get install -reinstall Temporarily moved configuration directories such as .gconf, .config and .gnome2 to another location Created a new user account When I choose "Ubuntu" during login, the problems disappear. I am sort of frustrated that reinstalling all packages didn't fix the issue. How to troubleshoot this Gnome Shell (?) problem, short of reinstalling the system? (Or did anyone see this kind of behavior on their machine?)

    Read the article

  • VirtualBox 4.0.10 is now available for download

    - by user12611829
    VirtualBox 4.0.10 has been released and is now available for download. You can get binaries for Windows, OS X (Intel Mac), Linux and Solaris hosts at http://www.virtualbox.org/wiki/Downloads The full changelog can be found here. The high points for the 4.0.10 maintenance release include .... GUI: fixed disappearing settings widgets on KDE hosts (bug #6809) Storage: fixed hang under rare circumstances with flat VMDK images Storage: a saved VM could not be restored under certain circumstances after the host kernel was updated Storage: refuse to create a medium with an invalid variant Snapshots: none of the hard disk attachments must be attached to another VM in normal mode when creating a snapshot USB: fixed occasional VM hangs with SMP guests USB: proper device detection on RHEL/OEL/CentOS 5 guests ACPI: force the ACPI timer to return monotonic values for improve behavior with SMP Linux guests RDP: fixed screen corruption under rare circumstances rdesktop-vrdp: updated to version 1.7.0 OVF: under rare circumstances some data at the end of a VMDK file was not written during export Mac OS X hosts: Lion fixes Mac OS X hosts: GNOME 3 fix Linux hosts: fixed VT-x detection on Linux 3.0 hosts Linux hosts: fixed Python 2.7 bindings in the universal Linux binaries Windows hosts: fixed leak of thread and process handles Windows Additions: fixed bug when determining the extended version of the Guest Additions Solaris Additions: fixed installation to 64-bit Solaris 10u9 guests Linux Additions: RHEL6.1/OL6.1 compile fix Linux Additions: fixed a memory leak during VBoxManage guestcontrol execute Technocrati Tags: Sun Virtualization VirtualBox var sc_project=1193495; var sc_invisible=1; var sc_security="a46f6831";

    Read the article

  • Rotating wheel with touch (adding momentum and slowing down the initial rate it can be moved

    - by Lewis
    I have a wheel control in a game which is setup like so: - (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint location = [touch locationInView:[touch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; if (CGRectContainsPoint(wheel.boundingBox, location)) { CGPoint firstLocation = [touch previousLocationInView:[touch view]]; CGPoint location = [touch locationInView:[touch view]]; CGPoint touchingPoint = [[CCDirector sharedDirector] convertToGL:location]; CGPoint firstTouchingPoint = [[CCDirector sharedDirector] convertToGL:firstLocation]; CGPoint firstVector = ccpSub(firstTouchingPoint, wheel.position); CGFloat firstRotateAngle = -ccpToAngle(firstVector); CGFloat previousTouch = CC_RADIANS_TO_DEGREES(firstRotateAngle); CGPoint vector = ccpSub(touchingPoint, wheel.position); CGFloat rotateAngle = -ccpToAngle(vector); CGFloat currentTouch = CC_RADIANS_TO_DEGREES(rotateAngle); wheelRotation += (currentTouch - previousTouch) * 0.6; //limit speed 0.6 } } Now once the user lets go of the wheel I want it to rotate back to where it was before but not without taking into account the momentum of the swipe the user has done. This is the bit I really can't get my head around. So if the swipe generates a lot of momentum then the wheel will carry on moving slightly in that direction until the overall force which pulls the wheel back to the starting position kicks in. Any ideas/code snippets?

    Read the article

  • Microsoft Access as a Weapon of War

    - by Damon
    A while ago (probably a decade ago, actually) I saw a report on a tracking system maintained by a U.S. Army artillery control unit.  This system was capable of maintaining a bearing on various units in the field to help avoid friendly fire.  I consider the U.S. Army to be the most technologically advanced fighting force on Earth, but to my terror I saw something on the title bar of an application displayed on a laptop behind one of the soldiers they were interviewing: Tracking.mdb Oh yes.  Microsoft Office Suite had made it onto the battlefield.  My hope is that it was just running as a front-end for a more proficient database (no offense Access people), or that the soldier was tracking something else like KP duty or fantasy football scores.  But I could also see the corporate equivalent of a pointy-haired boss walking into a cube and asking someone who had piddled with Access to build a database for HR forms.  Except this pointy-haired boss would have been a general, the cube would have been a tank, and the HR forms would have been targets that, if something went amiss, would have been hit by a 500lb artillery round. Hope that solider could write a good query :)

    Read the article

  • Recent 12.04 Upgrade Makes My System and Internet Run Extremely SLOW!

    - by Sterling
    I'm running a Dell Inspiron 1564 with Windows7/Ubuntu dual booting. I haven't logged into the Ubuntu OS partition for some time until recently (trying to force myself into a Linux environment to learn) and when I did, It asked me to upgrade to 12.04 and so I did, restarted and since, everything seems to run extremely slow (startup, opening applications, running applications, switching windows, etc., etc... Another thing is that the Internet cuts out intermittently on my browser. Some pages within my Firefox tabs I can access, some I cant. Almost always while running Skype or some other Internet using application. So I know that I'm getting Internet, I can chat with friends over Skype but certain pages wont load during my Skype calls; the pages just hang upon resfreshing... I can eventually get the page to load after an indefinite amount of waiting and refreshing but this is very annoying. I am extremely new to Linux so I apologize in advance for my absolute ignorance. I am willing to post whatever information you Linux gurus have me type into the terminal in hopes that you can help me =) Thanks in advance!

    Read the article

  • Using a CDN for CMS software (multiple sites)

    - by SmokeyPHP
    I'm currently researching ideas for the media management side of a CMS I'm writing. I was looking at having images served from a CDN which is fine on a single site, but I want all sites that run the CMS to make use of a CDN (which will most likely be a custom developed one, rather than a third party service like S3). My main question is: Is a multi-site CDN a good idea? I can't think of a downside, but have probably missed something - obviously they won't share the same folder, as I invisage the requests to be css.cdnsite.com/example.com/style.css or something along those lines. Having multiple sites in the same place will obviously make it easier for us to manage, as well as being cheaper, but then I wonder if it'll be worth it... Long story short: How should the CMS handle user uploaded media (separate installations) Just keep a local copy of all assets and serve them from the same site, like in days of yore? Keep a local copy, force site to use www. and have CDN subdomains per site? Or use a single separate CDN for all sites? Apologies for the length of this question, not sure if this should be multiple questions or not, as all parts are kind of related and could affect each other.

    Read the article

  • No keyboard after suspend, even after hard reset

    - by subatomics
    all. While I was using a Ubuntu 9.1 live CD, I put the computer (Toshiba Satellite C655) into standby. After I resumed, the keyboard stopped functioning, though the mouse (USB) still worked. I decided to turn off the computer, but after Ubuntu shuts down, it asks you to press "enter" to actually turn the machine off. The keyboard was still dead, so I all I could do was use the on/off switch to power down the computer. Now, when I try to boot the computer, nothing happens. Before this problem, I would see a menu asking me to select an OS (I had Windows 7 and Windows XP installed). I cannot use any emergency measures because I need to press F12 to boot from a CD, and the keyboard is still not working. I tried removing the HD to force a boot from the CD, but it didn't work. I also tried to plug in a USB keyboard, which failed as well. Right now, I have no idea how to fix this. Any ideas? Thanks.

    Read the article

  • Should Android and iPhone UI be different?

    - by Phonon
    I'm not completely new to developing apps, but I'm at a point where I'm trying to develop something and deploy it on several mobile platforms. To only concentrate on two major ones, suppose I'm developing an app for Android and iPhone and designing UI and the general user interaction architecture. Both platforms give guidelines as to how their UIs should work. For example, most iPhone apps have the Navigation Bar (the one that says Testing 1 and has a Back button) and an Icon Bar for navigating a program, while Android uses an Options Menu fetched via a Menu button and the "back" navigation is handled with the physical Back button on the device. I've seen many apps that try to force the same UI on every platform. For example, custom-building an iPhone style Icon Bar and putting it in their Android apps, but it just doesn't quite look right to me and it feels like it violates UI design guidelines somewhat. Are there any good design patters for implementing something sufficiently similar on both platforms, yet still platform-specific enough so that the user would not feel out of their comfort zone? What do people usually do in these situations?

    Read the article

  • github team workflow - to fork or not?

    - by aporat
    We're a small team of web developers currently using subversion but soon we're making a switch to github. I'm looking at different types of github workflows, and we're not sure if the whole forking concept in github for each developer is such a good idea for us. If we use forks, I understand each developer will have his own private remote & local repositories. I'm worried it will make pushing changesets hard and too complex. Also, my biggest concern is that it will force each developer to have 2 remotes: origin (which is the remote fork) and an upstream (which is used to "sync" changes from the main repository). Not sure if it's such a easy way to do things. This is similar to the workflow explained here: https://github.com/usm-data-analysis/usm-data-analysis.github.com/wiki/Git-workflow If we don't use forks, we can probably get by fine by using a central repo creating a branch for each task we're working on, and merge them into the development branch on the same repository. It means we won't be able to restrict merging of branches and might be a little messy to have many branches on the central repository. Any suggestions from teams who tried both workflow?

    Read the article

  • Web host recommendation [closed]

    - by birdus
    Possible Duplicate: How to find web hosting that meets my requirements? I'm researching a web host for a client and am looking for any recommendations of hosts you may have used and been happy with. Here are the requirements I've been given: The hosting service needs to either provide or allow us to add the following functionality: i. ASP/ASP.Net ii. video streaming iii. audio streaming iv. reporting v. RSS feeds vi. site search vii. forums viii. podcasts ix. Flash x. CMS: looking at using Percussion Software xi. PII registration xii. tie into SF.com (Sales Force) They also want to have a pre-prod server available so they can test the website before going public with it. This may just be a matter of paying extra for another site/server. Thanks for the help.

    Read the article

  • Uninstall ax88179 package

    - by jackbenny
    I've installed the ax88179 package from the PPA (since the ax88179 driver isn't in the 3.8 kernel). But now I'd like to install kernel 3.11.6 and this module is already included here. So I'd like to uninstall the the module from the package but this fails with the following error message The following packages will be REMOVED: ax88179* 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 313 kB disk space will be freed. Do you want to continue [Y/n]? (Reading database ... 202833 files and directories currently installed.) Removing ax88179 ... Error! There are no instances of module: ax88179_178a 1.6.0 located in the DKMS tree. rm: cannot remove ‘/usr/src/AX88179_178A_LINUX_DRIVER_v1.6.0_SOURCE’: No such file or directory dpkg: error processing ax88179 (--purge): subprocess installed pre-removal script returned error exit status 1 No apport report written because MaxReports is reached already ln: failed to create symbolic link ‘/usr/src/AX88179_178A_LINUX_DRIVER_v1.7.0_SOURCE’: File exists Error! DKMS tree already contains: ax88179_178a-1.7.0 You cannot add the same module/version combo more than once. Module ax88179_178a/1.7.0 already built for kernel 3.8.0-32-generic/4 Module ax88179_178a/1.7.0 already installed on kernel 3.8.0-32-generic/x86_64 Errors were encountered while processing: ax88179 E: Sub-process /usr/bin/dpkg returned an error code (1) It complains about both version 1.6 and 1.7. I've updated to 1.7 a couple of days ago. --force doesn't help either. I just want to get rid of it since when I'm running 3.11.6 the versions interfere with each other.

    Read the article

  • handling multiple interviews / offers [closed]

    - by farble1670
    What's the best way to handle a situation where you have, or expect to have multiple offers? The ideal situation is that your several offers come in about the same time, and you make a choice. this is not how it happens though. You may have an offer, and several near-final interviews lined up for the following days or weeks. One way to handle it would be to ask for a longer time to decide on the first offers you receive. 2 weeks? This gives time to rush the rest of the things you have going through to an end. i question whether asking for 2 weeks to decide is reasonable though. My guess is that an employer would see through that and force your hand. Another way to handle it would be to accept the first offer, and ask for a reasonable period before your start date, then simply "quit" the first position before you ever start if something better comes along. On one hand, employment is at-will, and employers exercise this fact regularly. On the other hand, it seems morally the wrong thing, and has the potential to burn some bridges. And of course the last option is to simply evaluate each offer in isolation, and accept or reject within the given time frame. any thoughts?

    Read the article

  • How to optimize a box2d simulation in action game?

    - by nathan
    I'm working on an action game and i use box2d for physics. The game use a tiled map. I have different types of body: Static ones used for tiles Dynamic ones for player and enemies Actually i tested my game with ~150 bodies and i have a 60fps constantly on my computer but not on my mobile (android). The FPS drop as the number of body increase. After having profiled the android application, i saw that the World.step took around 8ms in CPU time to execute. Here are few things to note: Not all the world is visible on screen, i use a scrolling system Enemies are constantly moving toward the player so there is alaways to force applied to their body Enemies need to collide between each others Enemies collide with tiles I also now that i can active/desactive or sleep/awake bodies. Considering the fact that only a part of the enemies are possibly displayed on screen, is there any optimizations i can do to reduce the execution time of box2d simulation? I found a guy trying an optimization based on distance of enemies from the player (link). But i seems like he just desactives far bodies (in my case, i could desactive bodies that are not visible). But my enemies need to move even when they are not visible on screen, and applying forces will not workd on inactive bodies. Should i play with sleeping bodies here? Also, enemies are composed by two fixtures and are constantly colliding with each others and with tiles but i really never need to get notified about that. Is there anything i can do to optimize this kind of scenario? Finally, am i wrong to try to run simulation at 60FPS on mobile and should i try to make it run at 30FPS?

    Read the article

  • Ubuntu Software Centre is gone! How can I get it back?

    - by Mochan
    Right. I am having MAJOR issues. (It would be much appreciated if you would solve them for me! Check my profile for open questions...) Following an answerer... who sorry to say... didn't give a great answer because it was just a graphical way of doing what I had already done - suggested I purge a library. Turns out that library controlled the Advanced Packaging Tool (apt), Ubuntu Software Centre and the repositories. Not a great tool to mess with. While trying to purge the library, it came up with 'Removing MyUnity.. Removing x... Removing x... Removing Ubuntu Software Centre... Removing X... Removing apt..." I quickly recognized and force shut-down my system. But I guess it was too late. So... well, plainly put - how do I get it back?!

    Read the article

  • How to properly uninstall/reinstall Ubuntu One on Windows XP?

    - by user73303
    I had previously installed an Ubuntu One client as a test on a Windows XP machine. Now I wanted to change the account for the client to a production one but had problems changing the email address so decided to do a reinstall. Ran uninstall. Downloaded ubuntuone-3.0.2-windows-installer.exe. It downloads, goes through the unpacking/install – strangely some of the messages say updating as if it was replacing something that was already there. I do not get the setup/signin screen. There is no ubuntu% processes running. The Program files/ubuntuone directory exists with data and dist folders. The U icon is on the desktop – pointing at ubuntuone/dist/ubuntuone-control-panel-qt.exe but this does not run. Ran uninstall again, deleted Program files/ubuntuone directory, removed any ubuntu entries for registry, rebooted. Downloaded install again - exactly the same as above. How can I uninstall Ubuntu One to get a clean reinstall? Or force the install to continue after downloading/unpacking?

    Read the article

  • When creating a GUI wizard, should all pages/tabs be of the same size? [closed]

    - by Job
    I understand that some libraries would force me to, but my question is general. If I have a set of buttons at the bottom: Back, Next, Cancel?, (other?), then should their location ever change? If the answer is no, then what do I do about pages with little content? Do I stretch things? Place them in the lone upper left corner? According to Steve Krug, it does not make sense to add anything to GUI that does not need to be there. I understand that there are different approaches to wizards - some have tabs, others do not. Some tabs are lined horizontally at the top; others - vertically on the left. Some do not show pages/tabs, and are simply sequences of dialogs. This is probably a must when the wizard is "non-linear", e.g. some earlier choices can result in branching. Either way the problem is the same - sacrifice on the consistency of the "big picture" (outline of the page/tab + location of buttons), or the consistency of details (some tabs might be somewhat packed; others having very little content). A third choice, I suppose is putting extra effort in the content in order to make sure that organizing the content such that it is more or less evenly distributed from page to page. However, this can be difficult to do (say, when the very first tab contains only a choice of three things, and then branches off from there; there are probably other examples), and hard to maintain this balance if any of the content changes later. Can you recommend a good approach? A link to a relevant good blog post or a chapter of a book is also welcome. Let me know if you have questions.

    Read the article

  • X crashes and GNOME loses all its configuration

    - by Oli
    About every 3 days on my desktop (always on), X crashes, gdm restarts and it dumps me at a login screen. When I log in Gnome appears to have lost a lot of its settings: it plays sounds in weird places, UI elements look like they're from the 90s (GTK+ defaults) and it's generally pretty hideous. Note everything works fine. It's not like my profile doesn't exist because I can browse the internet fine (Firefox knows my bookmarks, history, passwords, etc) and my desktop is unscathed (apart from the icon theme). Manually restarting gdm doesn't fix this. I have to do a full reboot. Now I'm almost certain that this is a nvidia issue causing X to baulk (I've seen similarish threads on nvnews) and I'm happy with that (my fault for running their latest drivers all the time). What I'm concerned about is why Gnome looks so fugly. Is there anything I can do to force it to reload its settings without restarting the whole computer. Restarting is an issue for me as I run several daemons that other computers on the network depend upon. This is what I mean by ugly/fugly... Look at that scroll bar!

    Read the article

  • How do 2D physics engines solve the problem of resolving collisions along tiled walls/floors in non-grid-based worlds?

    - by ssb
    I've been working on implementing my SAT algorithm which has been coming along well, but I've found that I'm at a wall when it comes to its actual use. There are plenty of questions regarding this issue on this site, but most of them either have no clear, good answer or have a solution based on checking grid positions. To restate the problem that I and many others are having, if you have a tiled surface, like a wall or a floor, consisting of several smaller component rectangles, and you traverse along them with another rectangle with force being applied into that structure, there are cases where the object gets caught on a false collision on an edge that faces the inside of the shape. I have spent a lot of time thinking about how I could possibly solve this without having to resort to a grid-based system, and I realized that physics engines do this properly. What I want to know is how they do this. What do physics engines do beyond basic SAT that allows this kind of proper collision resolution in complex environments? I've been looking through the source code to Box2D trying to find out how they do it but it's not quite as easy as looking at a Collision() method. I think I'm not good enough at physics to know what they're doing mathematically and not good enough at programming to know what they're doing programmatically. This is what I aim to fix.

    Read the article

  • Expected time for lazy evaluation with nested functions?

    - by Matt_JD
    A colleague and I are doing a free R course, although I believe this is a more general lazy evaluation issue, and have found a scenario that we have discussed briefly and I'd like to find out the answer from a wider community. The scenario is as follows (pseudo code): wrapper => function(thing) { print => function() { write(thing) } } v = createThing(1, 2, 3) w = wrapper(v) v = createThing(4, 5, 6) w.print() // Will print 4, 5, 6 thing. v = create(7, 8, 9) w.print() // Will print 4, 5, 6 because "thing" has now been evaluated. Another similar situation is as follows: // Using the same function as above v = createThing(1, 2, 3) v = wrapper(v) w.print() // The wrapper function incestuously includes itself. Now I understand why this happens but where my colleague and I differ is on what should happen. My colleague's view is that this is a bug and the evaluation of the passed in argument should be forced at the point it is passed in so that the returned "w" function is fixed. My view is that I would prefer his option myself, but that I realise that the situation we are encountering is down to lazy evaluation and this is just how it works and is more a quirk than a bug. I am not actually sure of what would be expected, hence the reason I am asking this question. I think that function comments could express what will happen, or leave it to be very lazy, and if the coder using the function wants the argument evaluated then they can force it before passing it in. So, when working with lazy evaulation, what is the practice for the time to evaluate an argument passed, and stored, inside a function?

    Read the article

  • recovering raid 0 hard disk

    - by Hiawatha
    I bumped to a huge (for me) problem. I was running dual boot system (win 7 / linux) and at some point I decided to test fedora ( I am new in Linux ). My hard disk conf: 3 hard disks each 1 TB, 2 set to raid 0 with windows running on it and 1 for linux. After installing it from live usb I found out that windows 7 is not in grub anymore and while booting shows raid error. I installed back Ubuntu and ran Disk Utility and checked now I have one disks (raid 0) failed (READ) error. First has 5 bad sectors and second has 1 bad sector. And now I dont know what to do and how to repair. further I dont know which data i could provide to get help. I tried ntfsfix and got this output: Mounting volume... NTFS signature is missing. FAILED Attempting to correct errors... NTFS signature is missing. FAILED Failed to startup volume: Invalid argument NTFS signature is missing. Trying the alternate boot sector Unrecoverable error Volume is corrupt. You should run chkdsk. #sudo ntfs-3g -o force,rw /dev/sdb /media/windows NTFS signature is missing. Failed to mount '/dev/sdb': Invalid argument The device '/dev/sdb' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

    Read the article

  • Use constructor or setter method?

    - by user633600
    I am working on a UI code where I have an Action class, something like this - public class MyAction extends Action { public MyAction() { setText("My Action Text"); setToolTip("My Action Tool tip"); setImage("Some Image"); } } When this Action class was created it was pretty much assumed that the Action class wont be customizable (in a sense- its text, tooltip or image will be not be changed anywhere in the code). Of late, now we are in need of changing the action text at some location in code. So I suggested my co-worker to remove the hardcoded action text from the constructor and accept it as an argument, so that everybody is forced to pass the action text. Something like this code below - public class MyAction extends Action { public MyAction(String actionText) { setText(actionText); setTooltip("My Action tool tip); setImage("My Image"); } } He however thinks that since setText() method belongs to base class. It can be flexibly used to pass the action text wherever action instance is created. That way, there is no need to change the existing MyAction class. So his code would look something like this. MyAction action = new MyAction(); //this creates action instance with the hardcoded text action.setText("User required new action text"); //overwrite the exisitng text. I am not sure if that is a correct way to deal with problem. I think in above mentioned case user is anyway going to change the text, so why not force him while constructing the action. The only benefit I see with the original code is that user can create Action class without much thinking about setting text.

    Read the article

  • no boot option after install ubuntu 12.04 LTS using cd

    - by utamaku
    im facing a problem. after installing Ubuntu 12.04 LTS using boot from CD, when reboot there is no boot option to choose the OS. i directly log in to my Windows 7. before this im having an issue with the 'nomodeset' if not mistaken. after tick [x] on the nomodeset, i can install my Ubuntu, and stuck again at choosing the partition. so i had done 2 partitions for ubuntu, 1 partition for ubuntu ( ext3, mount /) and the other 1 for swap. then i can proceed until finished the installation. and after the system want to reboot. it take some times and just stuck at the screen doing nothing. not rebooting at all. i force to shutdown then restart again then directly go into windows 7 without boot option. in win7 the partitions for ubuntu is gone. i had tried the boot-repair thing and still doesn't help. it just show up the _ (terminal thing i guess). i typed boot repair and still the same. im using acer aspire 4736z. please anybody help me with this issue.

    Read the article

  • Efficient algorithm for Virtual Machine(VM) Consolidation in Cloud

    - by devansh dalal
    PROBLEM: We have N physical machines(PMs) each with ram Ri, cpu Ci and a set of currently scheduled VMs each with ram requirement ri and ci respectively Moving(Migrating) any VM from one PM to other has a cost associated which depends on its ram ri. A PM with no VMs is shut down to save power. Our target is to minimize the weighted sum of (N,migration cost) by migrating some VMs i.e. minimize the number of working PMs as well as not to degrade the service level due to excessive migrations. My Approach: Brute Force approach is choosing the minimum loaded PM and try to fit its VMs to other PMs by First Fit Decreasing algorithm or we can select the victim PMs and target PMs based on their loading level and shut down victims if possible by moving their VMs to targets. I tried this Greedy approach on the Data of Baadal(IIT-D cloud) but It isn't giving promising results. I have also tried to study the Ant colony optimization for dynamic VM consolidating but was unable to understand very much. I used the links. http://dumas.ccsd.cnrs.fr/docs/00/72/52/15/PDF/Esnault.pdf http://hal.archives-ouvertes.fr/docs/00/72/38/56/PDF/RR-8032.pdf Would anyone please clarify the solution or suggest any new approach/resources for better performance. I am basically searching for the algorithms not the physical optimizations and I also know that many commercial organizations have provided these solution but I just wanted to know more the underlying algorithms. Thanks in advance.

    Read the article

< Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >