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Make $JAVA_HOME easily changable in Ubuntu [closed]
...vironment variables in a way that affects a particular user's environment, one should not place commands to set their values in particular shell script files in the user's home directory, but use:
~/.pam_environment - This file is specifically meant for setting a user's environment. It is not a...
Symfony2 : How to get form validation errors after binding the request to the form
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I also did the first one (w/ php templates <?php echo $view['form']->errors($form) ?>) but still it's empty!
– putolaruan
Aug 8 '11 at 10:33
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How can I get the count of milliseconds since midnight for the current?
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and if somebody defines a timezone not on second border or adds a leap-millisecond this breaks.=))
– Markus Mikkolainen
Aug 2 '12 at 20:40
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How to change the default GCC compiler in Ubuntu?
...em. In your case, you will be able to use several declinations of gcc, and one will be favoured.
To figure out the current priorities of gcc, type in the command pointed out by @tripleee's comment:
update-alternatives --query gcc
Now, note the priority attributed to gcc-4.4 because you'll need t...
How to format a JavaScript date
...custom-delimited date formats, you have to pull out the date (or time)
components from a DateTimeFormat object (which is part of the
ECMAScript Internationalization API), and then manually create a string
with the delimiters you want.
To do this, you can use DateTimeFormat#formatToParts. You could
d...
Creating a zero-filled pandas data frame
...= ["col{}".format(i) for i in range(10)]
In [2]: orig_df = pd.DataFrame(np.ones((10, 10)), columns=columns)
In [3]: %timeit d = pd.DataFrame(np.zeros_like(orig_df), index=orig_df.index, columns=orig_df.columns)
10000 loops, best of 3: 60.2 µs per loop
Compare to:
In [4]: %timeit d = pd.DataFrame...
Differences between utf8 and latin1
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In latin1 each character is exactly one byte long. In utf8 a character can consist of more than one byte. Consequently utf8 has more characters than latin1 (and the characters they do have in common aren't necessarily represented by the same byte/bytesequence)....
std::string to char*
...ard I also explain some side effects of the use of this function, of which one is that you may not edit the string returned by c_str(). You mistakenly see my short examples as real problem-solving code, which it's not.
– orlp
Sep 8 '11 at 20:19
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Mac zip compress without __MACOSX folder?
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When I had this problem I've done it from command line:
zip file.zip uncompressed
EDIT, after many downvotes: I was using this option for some time ago and I don't know where I learnt it, so I can't give you a better explanation. Chris Johnson's answer ...
JavaFX Application Icon
...ssible to change the application icon using JavaFX, or does it have to be done using Swing?
17 Answers
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