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Should I use Java's String.format() if performance is important?
....println("Time after for loop " + time);
}
}
Running the above for different N shows that both behave linearly, but String.format is 5-30 times slower.
The reason is that in the current implementation String.format first parses the input with regular expressions and then fills in the parame...
How do I lock the orientation to portrait mode in a iPhone Web Application?
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You can specify CSS styles based on viewport orientation:
Target the browser with body[orient="landscape"] or body[orient="portrait"]
http://www.evotech.net/blog/2007/07/web-development-for-the-iphone/
However...
Apple's approach to t...
How to get access to HTTP header information in Spring MVC REST controller?
... Should mention, you'll get a 400 bad request error as a response in case if request will not contain such header. More flexible way is direct access to request headers as described in: stackoverflow.com/a/28209710/1828296
– lospejos
Jul 14 '16 at 13:43
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In Subversion can I be a user other than my login name?
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Most Subversion commands take the --username option to specify the username you want to use to the repository. Subversion remembers the last repository username and password used in each working copy, which means, among other things, that if you use svn checkout --username myuser yo...
Excluding files/directories from Gulp task
I have a gulp rjs task that concatenates and uglifies all my custom .JS files (any non vendor libraries).
2 Answers
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Can I create a One-Time-Use Function in a Script or Stored Procedure?
... I was going to suggest this. Just be careful that your script finishes; if it aborts, you'll still have the function in the DB.
– chocojosh
Jun 11 '09 at 14:34
6
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Don't display pushd/popd stack across several bash scripts (quiet pushd/popd)
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If you want to silence errors (e.g. no such directory) too, then you can use &> instead of >
– MattSturgeon
Apr 16 '17 at 17:36
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Key existence check in HashMap
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Do you ever store a null value? If not, you can just do:
Foo value = map.get(key);
if (value != null) {
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} else {
// No such key
}
Otherwise, you could just check for existence if you get a null value returned:
Foo value = map.get(key);
if (v...
Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
...API is probably throwing away the alpha channel (i.e. decoding to RGB565). If you have a file path, just use BitmapFactory directly, but tell it to use a format that preserves alpha:
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bi...
Create a new workspace in Eclipse
...to the answer from @rajah9, you may also want to copy settings, especially if you have good Working Sets defined.
– david.joyce13
Mar 4 '14 at 19:21
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