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Version vs build in Xcode

I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the vers...
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Volatile Vs Atomic [duplicate]

I read somewhere below line. 6 Answers 6 ...
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What's the opposite of chr() in Ruby?

In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() . ...
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How to set the text color of TextView in code?

In XML, we can set a text color by the textColor attribute, like android:textColor="#FF0000" . But how do I change it by coding? ...
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How to enable file sharing for my app?

I have an image editing app where users can apply effects to photos. How could I enable it so that users can see my app in iTunes in the File Sharing tab and then just drag+drop photos to the app? ...
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How do I run a Python program?

So I'm starting like Python a bit, but I'm having trouble erm...running it. Lol 10 Answers ...
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Java inner class and static nested class

What is the main difference between an inner class and a static nested class in Java? Does design / implementation play a role in choosing one of these? ...
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How to define a preprocessor symbol in Xcode

Is it possible to set a symbol for conditional compilation by setting up properties in an Xcode project? 8 Answers ...
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SQL Joins Vs SQL Subqueries (Performance)?

I wish to know if I have a join query something like this - 8 Answers 8 ...
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How do I generate random integers within a specific range in Java?

How do I generate a random int value in a specific range? 66 Answers 66 ...