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How to use null in switch

...cts in switch statements*. The reason that the compiler doesn't complain about switch (i) where i is an Integer is because Java auto-unboxes the Integer to an int. As assylias already said, the unboxing will throw a NullPointerException when i is null. * Since Java 7 you can use String in switch st...
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How to get the last character of a string in a shell?

..., bash expands the variable and in this case does globbing before printing out. It is also better to quote the parameter to the script (in case you have a matching filename): sh lash_ch.sh 'abcde*' Also see the order of expansions in the bash reference manual. Variables are expanded before the file...
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How to set the text color of TextView in code?

...B); Where you have an alpha-channel first, then the color value. Check out the complete manual of course, public class Color extends Object. 1This code used to be in here as well: textView.setTextColor(getResources().getColor(R.color.errorColor)); This method is now deprecated in Android M...
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Remove columns from dataframe where ALL values are NA

...oids the copy of the whole object done by is.na(df). +10 for pointing that out. – Matt Dowle Sep 27 '12 at 9:59 ...
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“Private” (implementation) class in Python

...as all is more for modules designed to be used with "from M import *", without necessarily implying that the module users shouldn't touch that class. – Miles Feb 15 '09 at 20:20 ...
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How do I remove msysgit's right click menu options?

... unfortunately that wasn't an option when it was installed, so I think I'm out of luck on it. – DevelopingChris Mar 17 '10 at 4:41 ...
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jQuery removeClass wildcard

... the more wordy (^|\s). So, for example, to remove all classes consisting out of the word magic followed by a non-negative integer and only those, I'd match on /\bmagic\d+\b/. – CarlEdman Sep 21 '16 at 12:11 ...
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Is it possible to specify a different ssh port when using rsync?

...eone who needs to rsync to a weird port many times but each time is spread out just enough to where you forget the syntax. – Freedom_Ben Aug 5 '16 at 6:32 1 ...
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Get The Current Domain Name With Javascript (Not the path, etc.)

... How about: window.location.hostname The location object actually has a number of attributes referring to different parts of the URL share | ...
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)

...e default-src as Using shed, I found the offending sequence. It turned out to be an editor mistake. 00008099: C2 194 302 11000010 00008100: A0 160 240 10100000 00008101: d 64 100 144 01100100 00008102: e 65 101 145 01100101 00008103: f 66 102 146 01100110 00008104: a 61 09...