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Is Java really slow?

...my opinion, this is the main reason Java still has a bad reputation, especially server-side. This makes the String problems exponentially worse. Some simple mistakes are common: objects are often used in place of primitives, reducing performance and increasing memory use. Many Java libraries (includ...
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How to restart Activity in Android

...his: Intent intent = getIntent(); finish(); startActivity(intent); Basically, I'm calling finish() first, and I'm using the exact same intent this activity was started with. That seems to do the trick? UPDATE: As pointed out by Ralf below, Activity.recreate() is the way to go in API 11 and beyon...
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How do I directly modify a Google Chrome Extension File? (.CRX)

... I found this: The Google Chrome Extension file type is CRX. It is essentially a compression format. So if you want to see what is behind an extension, the scripts and the code, just change the file-type from “CRX” to “ZIP” . Unzip the file and you will get all the info you need. This way ...
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How to colorize diff on the command line?

... old new Installation: Ubuntu/Debian: sudo apt-get install colordiff OS X: brew install colordiff or port install colordiff share | improve this answer | follow ...
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ImportError: No module named requests

...quests is not a built in module (does not come with the default python installation), so you will have to install it: OSX/Linux Use $ sudo pip install requests (or pip3 install requests for python3) if you have pip installed. If pip is installed but not in your path you can use python -m pip ins...
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How can I convert my device token (NSData) into an NSString?

...ems a bad idea to use description : nothing ensures that later version of iOS will not change the implementation and result of this call. – madewulf Nov 14 '12 at 14:00 17 ...
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Not able to type in textfield in iphone simulator using Mac Keyboard?

...the keyboard will not show up. Toggle Software keyboard : This option will allow you type using your Mac keypad and will show the iOS on screen keyboard as well. share | improve this answer ...
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How to delete a workspace in Eclipse?

... Just delete the whole directory. This will delete all the projects but also the Eclipse cache and settings for the workspace. These are kept in the .metadata folder of an Eclipse workspace. Note that you can configure Eclipse to use project folders that are outside the works...
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Is it a good practice to use try-except-else in Python?

...o, the use of exceptions in Python does not slow the surrounding code and calling code as it does in some compiled languages (i.e. CPython already implements code for exception checking at every step, regardless of whether you actually use exceptions or not). In other words, your understanding that...
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Objective-C: Where to remove observer for NSNotification?

...his is obviously not a satisfying answer. I'd recommend, that you add a call [notificationCenter removeObserver: self] in method dealloc of those classes, which you intend to use as observers, as it is the last chance to unregister an observer cleanly. This will, however, only protect you against ...