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How can I calculate the difference between two dates?
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Just want to add that if you don't have that +0000 on the end, you'll be getting null dates and a value of 0 always on the diff, no matter what. So, don't fall in that trap.
– Volomike
Jun 17 '16 at 3...
Web colors in an Android color xml resource file
...color name="BurlyWood">#DEB887</color>
<color name="Plum">#DDA0DD</color>
<color name="Gainsboro">#DCDCDC</color>
<color name="Crimson">#DC143C</color>
<color name="PaleVioletRed">#DB7093</color>
<color name="Goldenrod">#DAA520</...
java.util.Date to XMLGregorianCalendar
...a waste formatting the instant into a string and parsing it back.
ZonedDateTime dateTime = yourInstant.atZone(zone);
GregorianCalendar c = GregorianCalendar.from(dateTime);
XMLGregorianCalendar date2 = DatatypeFactory.newInstance().newXMLGregorianCalendar(c);
System.out.println(date...
append multiple values for one key in a dictionary [duplicate]
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If you do use defaultdict set it up as a list: dd = defaultdict(list)
– sparrow
Aug 3 '16 at 20:14
1
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How do I focus on one spec in jasmine.js?
...n using Karma, you can enable only one test with fit or fdescribe (iit and ddescribe in Jasmine before 2.1).
This only runs Spec1:
// or "ddescribe" in Jasmine prior 2.1
fdescribe('Spec1', function () {
it('should do something', function () {
// ...
});
});
describe('Spec2', fun...
Codesign error: Provisioning profile cannot be found after deleting expired profile
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I found that, in addition to the above, I had to delete all of my profiles, re-download them from the provisioning portal, and reimport them into XCode. Then, in Build Settings / Code Signing, select the proper profile for all build configurat...
Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
...rked as debuggable. android.googlesource.com/platform/frameworks/base/+/921dd75
– Darpan
Jun 18 '18 at 10:28
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记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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defaults write com.apple.Xcode AppleICUDateFormatStrings '{1="yyyy-MM-dd";}'
Dock的相关操作
将鼠标指针放在分隔线上面，直到箭头出现，然后上下拖动可以改变Dock大小。
按住control键并点按分隔线，可以打开Dock快捷键菜单。
按下control-fn-...
What is the reason why “synchronized” is not allowed in Java 8 interface methods?
... so it might well be the case that the use of synchronization provides no additional thread safety whatsoever (you might be synchronizing on the wrong lock). This would give you the false sense of confidence that you have done something about thread safety, and no error message tells you that you'r...