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Proper use of beginBackgroundTaskWithExpirationHandler

... The accepted answer is very helpful and should be fine in most cases, however two things bothered me about it: As a number of people have noted, storing the task identifier as a property means that it can be overwritten if the method is called multiple times, leading to a task that...
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Get the IP address of the machine

This Question is almost the same as the previously asked Get the IP Address of local computer -Question. However I need to find the IP address(es) of a Linux Machine . ...
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?

...h is to be finished in about a year, which application server would you choose and why? 9 Answers ...
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Django - how to create a file and save it to a model's FileField?

...wkhtmltopdf's convert_to_pdf command. Thank you!! – Nostalg.io Sep 1 '16 at 4:53 In addition to this, I got an error i...
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Objective-C for Windows

...ework. Their aim is to keep Cocotron up to date with the latest version of OS X so that any viable OS X program can run on Windows. Because GNUStep typically uses the latest version of gcc, they also add in support for Objective-C++ and a lot of the Objective-C 2.0 features. I haven't tested those ...
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How can I do DNS lookups in Python, including referring to /etc/hosts?

...my DNS lookups very nicely, but it entirely ignores the contents of /etc/hosts . 6 Answers ...
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How to go back in Eclipse?

...ico, I guess that swap spaces in his conf ( it does in mine ) apple.com/macosx/what-is-macosx/apps-and-utilities.html#spaces – OscarRyz Jun 23 '10 at 0:10 ...
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How to use an existing database with an Android application [duplicate]

...ataBaseExist) { this.getReadableDatabase(); this.close(); try { // Copy the database from assests copyDataBase(); Log.e(TAG, "createDatabase database created"); } catch (IOException mIOException) { ...
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do you have kcachegrind like profiling tools for mac [closed]

... I ended up using qcachegrind on OSX. It can be installed via brew brew install qcachegrind or, to enable graphviz support: brew install qcachegrind --with-graphviz What's great about this program is that I successfully loaded a 6.1GB cachegrind file o...
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Why is char[] preferred over String for passwords?

...the usual getText() (returns String ) method. Similarly, I have come across a suggestion not to use String to handle passwords. ...