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How do I download a tarball from GitHub using cURL?
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tom
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answered Apr 21 '11 at 15:35
saltycranesaltycrane
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Regex to validate password strength
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438
You can do these checks using positive look ahead assertions:
^(?=.*[A-Z].*[A-Z])(?=.*[!@#$&...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...ion. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the memcpy version and the std::copy ver...
How to resize an image with OpenCV2.0 and Python2.6
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354
If you wish to use CV2, you need to use the resize function.
For example, this will resize bo...
not None test in Python [duplicate]
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1033
if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set to...
How to find the JVM version from a program?
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AlexRAlexR
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6
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How do you find the sum of all the numbers in an array in Java?
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In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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Reading a binary file with python
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edited Jan 3 '12 at 11:15
answered Jan 3 '12 at 10:46
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Math.random() versus Random.nextInt(int)
...s in its mantissa, so it is uniformly distributed in the range 0 to 1-(2^-53).
Random.nextInt(n) uses Random.next() less than twice on average- it uses it once, and if the value obtained is above the highest multiple of n below MAX_INT it tries again, otherwise is returns the value modulo n (th...
Prevent flicker on webkit-transition of webkit-transform [duplicate]
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edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Oct 13 '10 at 8:21
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