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How to configure postgresql for the first time?

I have just installed postgresql and I specified password x during installation. When I try to do createdb and specify any password I get the message: ...
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invalid target release: 1.7

... On a Mac, where jdk6 and jdk7 are installed, this can be forced in ~/.profile: export JAVA_HOME=$(/usr/libexec/java_home -v 1.7) – Hank Feb 10 '14 at 20:31 ...
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How to use android emulator for testing bluetooth application?

...ng. The code is working fine for real devices, but I want to run it on the Android Emulator. How can I use the emulator for bluetooth testing? ...
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Difference between android.app.Fragment and android.support.v4.app.Fragment

What is the difference between android.app.Fragment and android.support.v4.app.Fragment , and what are the circumstances in which each should be used? ...
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How to check programmatically if an application is installed or not in Android?

...am getting a exception "java.lang.RuntimeException: Adding window failed" and " E/AndroidRuntime(7554): Caused by: android.os.TransactionTooLargeException 05-14 11:37:25.305: E/AndroidRuntime(7554): at android.os.BinderProxy.transact(Native Method) 05-14 11:37:25.305: E/AndroidRuntime(7554): at...
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How to add semicolon after method call when inside parameter list in IntelliJ IDEA?

...r Windows or Linux users, Ctrl+Shift+Enter. For macOS/OS X users, ⌘ Command+⇧ Shift+Enter. That finishes the statement you're currently writing. Try it in a few different situations, like in if statements, for loops etc, and you'll see that it'll complete the line and open some curly braces fo...
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Is there a way to iterate over a dictionary?

...d a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ? ...
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How can I check the extension of a file?

...swith('.mp3'): ... elif m.endswith('.flac'): ... To be case-insensitive, and to eliminate a potentially large else-if chain: m.lower().endswith(('.png', '.jpg', '.jpeg')) share | improve this an...
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How to fully remove Xcode 4

... I use this command: sudo /Developer/Library/uninstall-devtools --mode=all Edit (1 year later): If you've downloaded Xcode from the App Store, it's self-contained, as @mediaslave suggests. You can just drag it to the trash or use AppZa...
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What's the equivalent of use-commit-times for git?

I need the timestamps of files on my local and on my server to be in sync. This is accomplished with Subversion by setting use-commit-times=true in the config so that the last modified of each file is when it was committed. ...