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How do I convert Long to byte[] and back in java

... like Guava in the vast majority of cases. And if you have some strange opposition to libraries, you should probably consider this answer first for native java solutions. I think the main thing my answer really has going for it is that you don't have to worry about the endian-ness of the system your...
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Allowed characters in Linux environment variable names

...ames shall not contain the character '='. For values to be portable across systems conforming to IEEE Std 1003.1-2001, the value shall be composed of characters from the portable character set (except NUL and as indicated below). So names may contain any character except = and NUL, but...
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Worth switching to zsh for casual use? [closed]

The default shell in Mac OS X is bash , which I'm generally happy to be using. I just take it for granted. It would be really nice if it auto-completed more stuff , though, and I've heard good things about zsh in this regard. But I don't really have the inclination to spend hours fiddling with s...
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ios app maximum memory budget

I'm working on an ios game that's targeting as a minimum the 3gs. We are using HD assets for retina display devices (iphone 4, ipod touch 4th gen). ...
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iOS 5 Best Practice (Release/retain?)

...rammer, what is the best practice for writing apps to be used either with iOS 5 or older versions? Specifically, should I continue using the release/retain of data, or should I ignore that? Does it matter? ...
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adb server version doesn't match this client

...id SDK(using same port number), to fix this simply go to settings => choose ADB tab => click on the option Use custom Android SDK Tools and set your SDK folder after you configure this, try to restart your adb by going into folder platform-tools which adb placed and do this command: ./adb...
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What's the correct way to sort Python `import x` and `from x import y` statements?

...ice what you use. According to few references from reputable sites and repositories also popularity, Alphabetical ordering is the way. for eg like this: import httplib import logging import random import StringIO import time import unittest from nova.api import openstack from nova.auth import use...
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The best way to remove duplicate values from NSMutableArray in Objective-C?

...? I wrote the answer below in 2009; in 2011, Apple added NSOrderedSet to iOS 5 and Mac OS X 10.7. What had been an algorithm is now two lines of code: NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:yourArray]; NSArray *arrayWithoutDuplicates = [orderedSet array]; If you are worri...
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Can an Android Toast be longer than Toast.LENGTH_LONG?

When using setDuration() for a Toast, is it possible to set a custom length or at least something longer than Toast.LENGTH_LONG ? ...
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Streaming Audio from A URL in Android using MediaPlayer?

...R.id.button1); mediaPlayer = new MediaPlayer(); mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); btn.setOnClickListener(pausePlay); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. get...