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• Can I add a UIView as a start UIview before the navigation based app?

  - by irene-19891023

  Hi, I am a novice in iphone sdk. Now I have already built a Navigation based app. But, I want to add a start UIview with some buttons before the table view of the Navigation based app. How can I do? Could you please explain it in detail? Thanks a lot

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• How to rsync a large file, with as little CPU and bandwidth expense as possible?

  - by Johan Allgoth

  I have a 500 GB file that I plan on backing up remotely. The file changes often. I'll be rsyncing it from a desktop to a server. Both can run rsync client or server. What is the proper command for this? The ones I've tried sofar has been taking forever or simply acted strange. Example and results: rsync -cv --partial --inplace --no-whole-file /desktop/file1 myserver.com::module/file1 Seems to work, but only if I do it twice (?!). Also, slow. Does the above command do the checksumming on both computers, or only on the sending one? Is it correct otherwise?

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• Thread runs only once

  - by folone

  When a Thread is finished, you cannot run it once more, using start() method: it throws an Exception. Could anyone explain, why? What stands behind such an architectural decision?

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• How do I tell if my firewire connection is running as 400 or 800?

  - by Tom

  I have a MacBook Pro with FireWire 800 and a freecom external harddrive that has USB3, FireWire 400 and 800. I am using a Nikkai FireWire 800 cable that has 800 connector on one end and a 400 connector on the other end. The 800 connector is attached to the MacBook pro and the 400 connector is attached to the freecom drive. Is there any way to tell what connection has been established? I looked at disk utility and it simply said 'FireWire'. Is there a command-line tool that would give more information? If it's 400, I plan to swap the cable for 800 connector at both ends.

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• Interview Q: find angle between hour and minute hands in an analog clock

  - by polygenelubricants

  I was given this interview question recently: An analog clock shows that the current time is HH:MM. Compute in degree, the smaller angle between the hour and minute hands. Be as precise as you can. I'm wondering what's the simplest, most readable, most precise algorithm is. Solution in any language is welcome (but do explain it a bit if you think it's necessary).

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• How to Workout wiht OpenSocial API in java

  - by user324929

  Hello there I'm facing problem with getting start with the Open Social API in java. I already google and bing it but still didn't found a sample to POC the usage of API for console or desktop based application. Can anybody suggest any link, forum or if possible explain the tedious flow of working of this API. You can try this link to try this API http://code.google.com/p/opensocial-java-client/ Thank You

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• ByRef vs ByVal generates errors!?

  - by serhio

  ByRef vs ByVal generates errors!? I had a method that used an Object Function Foo(ByRef bar as CustomObject) as Boolean this method generated errors, because some strange .NET Runtime things changed the bar object, causing its Dispose()al. A lot of time spent to understand the thing(where the ... object is changed), until somebody replaced ByRef by ByVal and object wasn't change anymore when passing to this method... Somebody could explain this, what happens?

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• Top stories in RSS reader

  - by Gautam

  How do you know what are the top stories or hot topics just in RSS feed aggregator NewsNow for example?? Could you please explain? I am new to Ruby on Rails. I want to build a RSS reader in Ruby on Rails. Could you suggest me some good tutorials or links?? Thanks Gautam

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• Rails - Using checkboxes to select multiple objects and having a choice of actions to perform.

  - by adam

  Id like to be able to create checkboxes for a list of objects. Then offer the user a number of actions to perform on the objects selected. I.e. delete, archive etc. I know of ryan's screencasts but it doesnt explain how to create links to multiple actions for the selected objects. It just showed him create a form_tag with a url to one action and a submit button.

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• What exactly can concrete domains be used to describe?

  - by Exander

  I have read the formal definition of a "concrete domain", but I still don't quite get it. Could someone explain it to me in simpler terms, preferably with some examples? The definition is available in Reasoning in Description Logics with a Concrete Domain in the Framework of Resolution by Ullrich Hustadt, Boris Motik, Ulrike Sattler. Page 1, Definition 1.

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• What's the difference between data model and object model?

  - by user198729

  CWM is data modeling UML is object modeling. Can someone explain the difference that a layman can understand?

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• Practical usings of "internal" keyword in C#

  - by Alexander Prokofyev

  Would you explain, please, what are practical usings of "internal" keyword in C#? I know what "internal" modifier limits access to the current assembly. But when could I need it? Thanks!

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• Makefile and rm -f file.{ext1,ext2,ext3} issue

  - by ak91

  Hello, Could you explain me, why Makefile rule: clean: rm -f foo.{bar1,bar2,bar3} does not result in removing files: foo.bar1 foo.bar2 and foo.bar3? I believe I saw pattern like that many times in various Makefiles, but I'm currently writing my own Makefile and can't make that rule work correctly (no files are removed). I'm using: gnu make 3.81 gnu bash 4.1.5 Bash evals that pattern as I suspect: $ echo test.{a,b,c} test.a test.b test.c Thanks!

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• How do you determine how long it is taking Apache to forward a request to Phusion Passenger?

  - by dan

  I have a Ruby on Rails website that is serving requests relatively fast within Rails. The completion time for a Rails request is about 130ms. But the request still takes a long time because of the time it takes the Apache server in front of the Phusion Passenger instances to hand off the request to Rails. How can I measure how long it takes Apache to hand off the request to Rails via Passenger? And how can I speed this up if it's slow. Yes, I plan on switching to nginx, but I need a temporary fix.

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• android inputMethodservice API confusion

  - by yee-chen

  I dont understand quite well about onStartInputView(), onCreateInputView(), onStartInput() and onInitializeInterface(), after i read throught inputMethodservice API. Anyone can explain it when we use function, how we use those function. Are they like life cycle in Activity? if yes, whats the sequence of them. how can they behave?

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• Can somebody suggest good learning source of IMS?

  - by Raja Reddy

  I would like to learn working with IMS, can somebody suggest me a good source? I'm not sure if it matters to say that I have quite good exposure and experience with INSYNC DB2 and QMF. So anything that can depict and explain the advantages and disadvantages over IMS would be really helpful. Thanks for your help beforehand..

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• Prevent Windows 7 from unpluging External HDD

  - by marverix

  I have installed Windows 7 as my media server. I pluged in 500GB external HDD via USB. I have changed power plan to Best Performance and changed advenced power settings to never turn off HDD etc. I even yesterday wrote powershell script (create and delete folder on this disk) and I have added it to harmonogram to run every 5 minutes starting from system boot. And nothing! Disk after some time (I realy can't say when) is turning off and Windows show "Unknown Device" in Device Manager. Then only system reboot or disk reboot helps. Any ideas how to prevent Windows 7 from stopping my external HDD? Cheers!

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• Python begineer confused by a piece of code

  - by Protean

  I understand the gist of the code, that it forms permutations; however, I was wondering if someone could explain exactly what is going on in the return statement. def perm(l): sz = len(l) print (l) if sz <= 1: print ('sz <= 1') return [l] return [p[:i]+[l[0]]+p[i:] for i in range(sz) for p in perm(l[1:])]

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• some scenarios where it is better to use WCF than Webservices

  - by bill smith

  Can some one explain me some scenarios where it is better to use WCF than Webservices . I mean describe me some scenarios where one should stick to WebServices alone and tell me some other scenarios where one should go for WCF instead of Webservices ?

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• How to concatenate 2 LPOLESTR

  - by BHOdevelopper

  Hi, i want to concatenate 2 strings in c++, i can't use char*. I tried the following but doesn't work: #define url L"http://domain.com" wstring s1 = url; wstring s2 = L"/page.html"; wstring s = s1 + s2; LPOLESTR o = OLESTR(s); I need a string with s1 and s2 concatenated. Any info or website that explain more about this ? Thanks.

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• What are function pointers used for, and how would I use them?

  - by zlack

  I understand I can use pointers for functions. Can someone explain why one would use them, and how? Short example code would be very helpful to me.

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• Stateful beans and Stateless beans in Spring context

  - by umesh awasthi

  Hi All, i am reading spring through its official documentation and at one place i came to a line that use prototype scope for for all statefull beans while singleton for stateless beans. i know there is something as statefull as well stateless beans in EJB but this is not what they have mentioned in the documents. Can any one explain me what exact this means of statefull as well stateless beans in Spring Thanks in advance

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• static index.html file nginx

  - by Guntis

  We are using nginx with php-fpm. We plan to make first page static (generate html file). if we have 100 concurrent connections, how we can handle file regeneration? basically we need generate new file index_new.html, then delete index.html, and then move index_new.html to index.html. What happens when index.html file was deleted? User gets 404 error? Or nginx handles file from OS cache? One idea is to tell nginx, that 404 error is index_new.html and then not to move index_new to index, but copy. But i don't like idea about 404 error. Thanks.

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• Character Sets explained for Dummies!

  - by Imran

  I don't think i fully understand character sets so i was wondering if anyone would be kind enough to explain it in layman's terms with examples ( for Dummies).I know there is utf8, latin1, ascii ect The more answers the better really. Thank you in advance;-)

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• Redirect to a web server depending on location with nginx

  - by fceruti

  Im working on a web site that has to be reachable from many countries under the same domain. Id like to know how can I receive a request with nginx (or any other static file server), and send it to different web servers depending on IP's location. I mean, what is the point on having multiple db machines on country A and B, if the server that serves you the page is chosen by round robin. Maybe theres another solution to my problem, and I would be very happy if someone can explain it to me.

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