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get dictionary value by key
...on, which I was not aware of. When I've found it out, I've pasted it here. And it seems that a lot of others didn't know about that also. Otherwise, they could also paste this answer and add that throws exception if key doesn't exist. Anyway, thanks for warning.
– FrenkyB
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How to append text to an existing file in Java?
...so there are several libraries for this. Two of the most popular are Log4j and Logback.
Java 7+
If you just need to do this one time, the Files class makes this easy:
try {
Files.write(Paths.get("myfile.txt"), "the text".getBytes(), StandardOpenOption.APPEND);
}catch (IOException e) {
//e...
Download File Using jQuery
....txt wouldn't help because it would still be stored in the browser history and intermediary servers.
– Pacerier
Mar 3 '15 at 22:40
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Convert a matrix to a 1 dimensional array
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That's a vector, and not a 1-d array.
– hadley
Sep 29 '10 at 20:35
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Function for Factorial in Python
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Easiest way is to use math.factorial (available in Python 2.6 and above):
import math
math.factorial(1000)
If you want/have to write it yourself, you can use an iterative approach:
def factorial(n):
fact = 1
for num in range(2, n + 1):
fact *= num
return fact
o...
How to add parameters to HttpURLConnection using POST using NameValuePair
... with HttpURLConnection (I need to use it this way, can't use HttpPost ) and I'd like to add parameters to that connection such as
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How to set a value of a variable inside a template code?
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It seems you cannot declare a container (I've tried list and tuple) in a with clause
– Vladislav Ivanishin
Mar 18 '15 at 1:58
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Creating the Singleton design pattern in PHP5
.../en/language.variables.scope.php#language.variables.scope.static to understand static variable scopes and why setting static $inst = null; works.
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How can I check file size in Python?
... by the block size, but I'm still searching how to get it programmatically and cross-platform (not via tune2fs etc.)
– Tomasz Gandor
Apr 22 '16 at 20:56
add a comment
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Python: try statement in a single line
... in Python, like you would in some other dynamic languages. The safer way (and the prevailing style) is to set all variables to something. If they might not get set, set them to None first (or 0 or '' or something if it is more applicable.)
If you do assign all the names you are interested in fir...