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How to make a cross-module variable?
...:
import a
print a.var
import c
print a.var
c.py:
import a
a.var = 2
Test:
$ python b.py
# -> 1 2
Real-world example: Django's global_settings.py (though in Django apps settings are used by importing the object django.conf.settings).
...
How to use Comparator in Java to sort
...ng. Also check out Comparator.reversed
Here's a sample
import org.junit.Test;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import static org.junit.Assert.assertTrue;
public class ComparatorTest {
@Test
public void test() {
List<Person> ...
How to simulate the environment cron executes a script with?
...tup. Is there a way to invoke bash(?) in the same way cron does so I could test scripts before installing them?
13 Answers
...
mysql -> insert into tbl (select from another table) and some default values [duplicate]
... '1', citydb.city_name, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP) select test.cities.city as city_name from test.cities as citydb; i am using this query it give me error can any one help me to solve this error?
– Chintan Mathukiya
Apr 7 at 12:57
...
is it possible to select EXISTS directly as a bit?
...
Just tested out this technique, works great. The CAST to BIT is not necessary to retrieve the results from the query, tested with SQL Server 2008 R2.
– Tore Aurstad
Mar 31 '15 at 9:09
...
Iterate over each line in a string in PHP
...lse) {
# do something with $line
$line = strtok( $separator );
}
Testing the performance, I iterated 100 times over a test file with 17 thousand lines: preg_split took 27.7 seconds, whereas strtok took 1.4 seconds.
Note that though the $separator is defined as "\r\n", strtok will separate...
Can an interface extend multiple interfaces in Java?
...same name and signature?
There is a tricky point:
interface A {
void test();
}
interface B {
void test();
}
class C implements A, B {
@Override
public void test() {
}
}
Then single implementation works for both :).
Read my complete post here:
http://codeinventions...
Overflow-x:hidden doesn't prevent content from overflowing in mobile browsers
... Sorry that it didn't work out for you. Before I answered I made a quick test using your site and applying my suggestion to your css. It fixed the problem for the standard- and dolphin browser on my android phone at least.
– subarachnid
Jan 11 '13 at 3:11
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How to determine if a number is a prime with regex?
...
I will explain the regex part outside of primality testing: the following regex, given a String s which consists of repeating String t, finds t.
System.out.println(
"MamamiaMamamiaMamamia".replaceAll("^(.*)\\1+$", "$1")
); // prints "Mamamia"
The way it wor...
delete vs delete[] operators in C++
...tor delete[] is distinguished but delete operator can release array too.
test* a = new test[100];
delete a;
And already checked this code have no memeory leak.
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