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On design patterns: When should I use the singleton?
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Similar to Properties.Settings.Default in .NET.
– Nick Bedford
Dec 5 '11 at 2:21
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Java Date vs Calendar
...ass and is mainly there for backward compatibility reasons. If you need to set particular dates or do date arithmetic, use a Calendar. Calendars also handle localization. The previous date manipulation functions of Date have since been deprecated.
Personally I tend to use either time in millisecond...
How can I add the new “Floating Action Button” between two widgets/layouts
...e file
Use CoordinatorLayout as root view.
Add layout_anchorto the FAB and set it to the top view
Add layout_anchorGravity to the FAB and set it to: bottom|right|end
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="...
Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
...fer it if they didn't float but stayed static as they do when the style is set to UITableViewStyleGrouped .
29 Answers
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Xcode 6 beta 2 issue exporting .ipa: “Your account already has a valid iOS distribution certificate”
...e "appropriate" Code Signing Identity and Provisioning Profile? I've tried setting the Release Code Signing Identity to "iOS Distribution" and it didn't help. If I set the Release Provisioning Profile to anything other than "Automatic" Xcode screws up the Code Signing Identity.
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How do you make div elements display inline?
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No @XmlRootElement generated by JAXB
... of using the reference to a type defined separetely. These allows JAXB to set this element as @XmlRootElement, which was not possible with the elementType which was used before for the root element.
– Arthur
Jan 9 '13 at 11:57
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How to redirect 'print' output to a file using python?
... actions to a file.
A simple example
Import logging, get the logger, and set the processing level:
import logging
logger = logging.getLogger()
logger.setLevel(logging.DEBUG) # process everything, even if everything isn't printed
If you want to print to stdout:
ch = logging.StreamHandler()
ch.s...
What is a CSRF token ? What is its importance and how does it work?
... and also remember it somehow, either by storing
it in the session or by setting a cookie containing the value. Now the
form would look like this:
<form action="https://example.com/tweet" method="POST">
<input type="hidden" name="csrf-token" value="nc98P987bcpncYhoadjoiydc9aj...
How do I make a placeholder for a 'select' box?
...cause of the empty value in the placeholder option.
Once a value has been set, the :invalid pseudo-class will be dropped. You can optionally also use :valid if you so wish.
Most browsers support this pseudo-class. Internet Explorer 10 and later. This works best with custom styled select elements...