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What does the CSS rule “clear: both” do?
...the POOL has no idea how many objects are floating, or what the length or breadth of the floated elements are, so it simply won't stretch.
Normal Flow Of The Document
Sections Floated To Left
Cleared Floated Elements To Stretch Background Color Of The Container
(Refer [Clearfix] section of this ...
How to get time difference in minutes in PHP
...ght saving (depending on timezone) into account where the "old way" won't. Read the manual about Date and Time http://www.php.net/manual/en/book.datetime.php
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Maximum length for MD5 input/output
...e, in which case you can pass in blocks to the digest function as they are read, in other words, you only need to have block bytes of the input available at a time.
– L̲̳o̲̳̳n̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳
Aug 3 '10 at 8:02
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What is the most appropriate way to store user settings in Android application
...s. If the user ever loses the phone, they've lost the password. It will be read. If they used that password elsewhere, everyplace they used it is compromised. In addition, you've permanently lost this account because with the password they can change your password. The correct way to do this is to s...
Should I return a Collection or a Stream?
Suppose I have a method that returns a read-only view into a member list:
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iOS: How to store username/password within an app?
...quits (if that was your concern).
Apple provides sample code that stores, reads and deletes keychain items and here is how to use the keychain wrapper class from that sample which greatly simplifies using Keychain.
Include Security.framework (in Xcode 3 right-click on frameworks folder and add exi...
What is the difference between Serializable and Externalizable in Java?
...perform the marshalling and unmarshalling functions (you need to implement readExternal and writeExternal methods on your class). This gives you the means to get around the reflection performance bottleneck.
In recent versions of Java (1.3 onwards, certainly) the performance of reflection is vastl...
Which characters need to be escaped in HTML?
... in an attribute and then handling it with JavaScript.
If you must, please read the Open Web Application Security Project's XSS Prevention Rules to help understand some of the concerns you will need to keep in mind.
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iPhone SDK: what is the difference between loadView and viewDidLoad?
...I add init code to loadView, I end up with an infinite stack trace
Don't read self.view in -loadView. Only set it, don't get it.
The self.view property accessor calls -loadView if the view isn't currently loaded. There's your infinite recursion.
The usual way to build the view programmatically i...
Better way to cast object to int
...ou have several options:
(int) — Cast operator. Works if the object already is an integer at some level in the inheritance hierarchy or if there is an implicit conversion defined.
int.Parse()/int.TryParse() — For converting from a string of unknown format.
int.ParseExact()/int.TryParseExact()...