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Difference between static class and singleton pattern?
...s you say that either a singleton or a static method isn't thread-safe? Usually both should be implemented to be thread-safe.
The big difference between a singleton and a bunch of static methods is that singletons can implement interfaces (or derive from useful base classes, although that's less co...
How do I upgrade PHP in Mac OS X?
... to check out Marc Liyanage's PHP package. It comes in a nice Mac OS X installer package that you can double-click. He keeps it pretty up to date.
http://php-osx.liip.ch/
Also, although upgrading to Snow Leopard won't help you do PHP updates in the future, it will probably give you a newer version...
Random Number Between 2 Double Numbers
... the cost of creating the random number generator, and will enable you to call GetRandomNumber very frequently. Since we are initializing a new RNG with every call, if you call quick enough that the system time doesn't change between calls the RNG will get seeded with the exact same timestamp, and ...
How to install CocoaPods?
...ase share with me. I read cocoa pods documents and many times tried to install but always failed because of the starting steps. I found one error whereby I can't install gems first. Can anyone give me the steps one by one? How to install or demo.
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Border for an Image view in Android?
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just a note on this, if the image is set dynamically then the border needs to be set again in code other wise the image is over the border.
– Rob85
Oct 20 '16 at 14:43
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Is there a Java API that can create rich Word documents? [closed]
... OpenOffice.org's Universal Network Objects (UNO) interface to programmatically generate MS-Word compatible documents (*.doc), as well as corresponding PDF documents, from a Java Web application (a Struts/JSP framework).
OpenOffice UNO also lets you build MS-Office-compatible charts, spreadsheets...
How to set auto increment primary key in PostgreSQL?
...hould always be using a primary key on your table because postgresql internally uses hash table structures to increase the speed of inserts, deletes, updates and selects. If a primary key column (which is forced unique and non-null) is available, it can be depended on to provide a unique seed for t...
I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome
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These errors are usually generated from an ad blocking plugin, such as Adblock Plus. To test this use either a different browser or uninstall the ad blocking plugin (right clicking the extension by the URL bar and clicking "Remove from Chrome......
How can I get the domain name of my site within a Django template?
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I guess, since Django 1.5 with the allowed hosts setting it's safe to use. docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
– Daniel Backman
Sep 23 '13 at 15:13
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Create PostgreSQL ROLE (user) if it doesn't exist
.... The DO statement uses plpgsql as default procedural language. The syntax allows to omit the explicit declaration:
DO [ LANGUAGE lang_name ] code
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lang_name
The name of the procedural language the code is written in. If
omitted, the default is plpgsql.
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