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How do I remove/delete a folder that is not empty?
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This doesn't work for me: Traceback (most recent call last): File "foo.py", line 31, in <module> shutil.rmtree(thistestdir) File "/usr/lib/python2.6/shutil.py", line 225, in rmtree onerror(os.rmdir, path, sys.exc_info()) File "/usr/lib/python2.6/shutil.p...
Python Create unix timestamp five minutes in the future
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Now in Python >= 3.3 you can just call the timestamp() method to get the timestamp as a float.
import datetime
current_time = datetime.datetime.now(datetime.timezone.utc)
unix_timestamp = current_time.timestamp() # works if Python >= 3.3
unix_timestamp_p...
How to Iterate over a Set/HashSet without an Iterator?
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Just for the record, toArray calls the set's iterator.
– assylias
Sep 17 '12 at 8:51
add a comment
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How to test my servlet using JUnit
...ockito to have the mock return the correct params, verify they were indeed called (optionally specify number of times), write the 'result' and verify it's correct.
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import java.io.*;
import javax.servlet.http.*;
import org.apache...
Number of rows affected by an UPDATE in PL/SQL
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You use the sql%rowcount variable.
You need to call it straight after the statement which you need to find the affected row count for.
For example:
set serveroutput ON;
DECLARE
i NUMBER;
BEGIN
UPDATE employees
SET status = 'fired'
WHERE name LI...
Uint8Array to string in Javascript
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This will throw RangeError on bigger texts. "Maximum call stack size exceeded"
– Redsandro
Mar 27 '14 at 0:18
1
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What is the difference between atomic / volatile / synchronized?
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You are specifically asking about how they internally work, so here you are:
No synchronization
private int counter;
public int getNextUniqueIndex() {
return counter++;
}
It basically reads value from memory, increments it and puts ...
Break when a value changes using the Visual Studio debugger
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Imagine you have a class called A with the following declaration.
class A
{
public:
A();
private:
int m_value;
};
You want the program to stop when someone modifies the value of "m_value".
Go to the class definition...
How to compile for Windows on Linux with gcc/g++?
...nje to be thorough, if you don't specify them, they can be removed automatically by the package manager when uninstalling mingw32 (marked as "dependencies". I you do specify them, they won't (marked as "manual").
– Matthieu
Oct 19 '18 at 8:08
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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...swer is vastly different. For example cloning an array of listeners before calling each of them. Those arrays are often small, usually 1 element.
– gman
Feb 13 '15 at 2:05
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