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• Does Objective-C have garbage collector on the iPhone?

  - by user208662

  Hello, I'm thinking of writing an app for the iphone. But I'm confused in regards to the objective-c language. Am I correct in saying that I have to do my own memory management? Is Objective-C a managed language such as C# and/or Java? Thank you!

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• How to decide when to use XSD or DTD?

  - by deepak

  Hi, I am a bit confused whether to go for DTD or XSD when designing. Could any one please help?

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• how to use Openlayers map

  - by Ela

  I am totally confused with this openlayers map. Even there are many examples and wiki, i could not find how to reuse it. I mean i want to show my city map with managable by admin, admin can add points and locations and it should displayed in front end. Please please help me how to do it?

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• Is it good practice to use the XOR (^) operator in Java for boolean checks?

  - by Pete

  I personally like the 'exclusive or' operator when it makes sense in context of boolean checks because of its conciseness. I much prefer to write if (boolean1 ^ boolean2) { //do it } than if((boolean1 && !boolean2) || (boolean2 && !boolean1)) { //do it } but I often get confused looks (from other experienced java developers, not just the newbies), and sometimes comments about how it should only be used for bitwise operations. I'm curious as to the best practices others use around the '^' operator.

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• what is the difference between loose coupling and tight coupling in obect oriented paradigm?

  - by Jim

  Hi, can any one describe the exact difference between loose coupling and tight coupling in Object oriented paradigm?? I am too much confused on this. Thanks, Jim.

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• Can netezza database handle procedures?

  - by san6086

  Hi I am having Netezza Database. I am querying the tables through DB visualiser. Since my table creation involves complex, I am interested to use procedures but I am unable to write it in DBvisualiser. I am confused whether the problem is with the tool that I use or in Netezza? Please advice

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• Confusing Javascript class declaration

  - by clutch

  I have some third-party Javascript that has statements like this: FOO = function() { ...functions() ... return { hash } }(); It is working as designed but I'm confused by it. Can anybody define what this structure is doing? Is it just a weird way to create a class?

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• Android Calendar API vs Calendar Provider API

  - by John Roberts

  I'm a little bit confused about the difference between the two. An example of the Calendar API is supposedly located here: http://samples.google-api-java-client.googlecode.com/hg/calendar-android-sample/instructions.html, but the author himself suggests using the Calendar Provider API, details about which are here: http://developer.android.com/guide/topics/providers/calendar-provider.html. Can someone explain to me the difference between the two, and which would be better for me to use for a simple calendar app?

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• what means subject in certificate?

  - by George2

  Hi guys, The related link is this MSDN article. I am always confused about the term "subject", for example, sk option "Specifies the subject's key container location", sr option "Specifies the subject's certificate store location". What exactly mean subject? The certificate owner? The certificate issuer (e.g. the root CA which issues the certificate)? Or something else? regards, George

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• How to maintain precision using DateTime.Now.Ticks in C#

  - by nmr

  I know that when I use DateTime.Now.Ticks in C# it returns a long value but I need to store it in an int variable and I am confused as to whether or not I can maintain that precision. As of right now I just have a cast int timeStampValue = (int)DateTime.Now.Ticks; Any suggestions or advice on how to maintain the precision, if possible, would be much appreciated.

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• include and using namespace in C++

  - by cambr

  for using cout, I need to specify both: #include<iostream> and using namespace std; Where is cout defined? in iostream, correct? So, it is that iostream itself is there in namespace std? What is the meaning of both the statements with respect to using cout? I am confused why we need to include them both.

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• probability of getting a job in india after doing b-tec and asp.net certification upto 2nd level

  - by abhishek

  hi i m really very confused i have done b-tech(computer science) in 2009 and till now i am a fresher , now i want to do asp.net certification up to 2nd level , would it help me in getting a job as a programmer in asp.net in India pl z help me becz. i need a job pl z give me some expert suggestions

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• how to create custom touch event and action

  - by Ajeet Kumar Yadav

  Hi i am new iphone i want to developing a application that is work on touch event. in this when user touch on screen then show a label msg u touch on right and same. how to do this i im confused plz tell me.

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• How to select a table from highest table use LinQ query

  - by user299683

  I have a sequence relationship: A has many Bs. B has many Cs. C has many Ds. They also make me so confused if there are more than 3 or 4,..tables. So, how can i select all Cs that satify A.Id="1". (something likes finding all grandsons of a grandfather) Thanks in advance.

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• does btree and b+tree store data only at their leaf nodes??

  - by rohit

  hi, i am studying btrees and b+trees. does btree and b+ tree stores data only at its leafs and use its internal nodes for making it easy to search the required data?? or it stores all the data at every node in the tree?? please tell me.. i am confused...!!

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• what are the differences between correctly executing .net thread and Win32 thread

  - by Ybbest

  I am reading the Asp.net security documentation on msdn.I come across these tow terms and get really confused. # WindowsIdentity = WindowsIdentity.GetCurrent(), which returns the identity of the security context of the currently executing Win32 thread. # Thread = Thread.CurrentPrincipal which returns the principal of the currently executing .NET thread which rides on top of the Win32 thread.

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• Code Sign Error When Building iPhone Application

  - by Apache

  I am new to iPhone development. I just registered with Apple for the iPhone Developer Program. When I try to build, I am receiving an error: Code Sign error: a valid provisioning profile matching the application’s identifier could not be found I'm not sure what is wrong. I tried browsing the Internet but I get confused. Can anyone help me with what I should do?

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• What is the differences and relationships between "process", "threads", "task" and "jobs" in Linux?

  - by TK

  I'm fairly confused with some of the terms used in Linux when I learn about web backend programming. What is the difference and relationships between "process", "threads", "task" and "jobs" in Linux?

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• Is PHP's require_once() what I need if I want my site to load if AND ONLY IF the menu loads correctl

  - by Sergio Tapia

  I'm kind of confused. I would put all the HTML for the menu in a .php file and have the engine require it right?

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• ms access negative page numbers

  - by FrustratedWithFormsDesigner

  I have an access report that generates 36505 pages (un filtered, and about half of each page is taken up by group headers and page headers) , though the footer at the bottom of the report page says "36505 of -29031". This looks like an overflow problem maybe, though I'm confused how it got the current page number of the last page OK, but failed to get total page count. Has anyone dealt with this before?

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• How can it be that PageContent implements IAddChild but has none of this interface methods?

  - by Nimrod Shory

  The PageContent element implements IAddChild but doesn't implements IAddChild methods so I can't call AddChild method on PageContent.. How can it be? And if i cast PageContent to IAddChild i can call AddChild method on it - So it does implement it somewhere... I am confused with this behavior. Can someone shed some light on this?

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• How to create an array, array list, array stack and array queue in Java?

  - by theband

  I was reading a Java article, but found no differences in the declaration and was confused over. Can anyone list me out this?

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• Jenkins - Publish Over CIFS Plugin

  - by Juvil

  I am getting confused with this plug in. basically my target is to Deploy files from Server1 to Server2 now the buildoutput dir is in a specific location in Server1 example E:\BuildOutput\Apps\Application1\Bin\ I need to deploy them in Server2 C:\Program Files\Tools\Application1\Bin\ How do I set up this plugin to work to what i need? I am getting stressed in the amount of files that needs to be deployed to another server, i just wished a simple xcopy tool to another server could work.

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• Correct implementation of MVC architecture

  - by Randy Gurment

  I read a lots of articles about MVC architecture, but I'm still confused. Which diagram is correct? Does even exist correct implementation of MVC architecture? Could I use diferent implementation of MVC architecture? Diagram 1 Diagram 2 Diagram 3

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• RSA PKCS1 implementation in Python

  - by user307016

  I'm working on the RSA PKCS1 implementation in Python,here's the message block i got: m = [0,2,random paddings,0,message integers] I read the RFC2313,and get a equation seems for transforming the message block object into an big-edian integer. I just get confused about how to transform it in Python. Any help would be appreciated.

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