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Are static variables shared between threads?
My teacher in an upper level Java class on threading said something that I wasn't sure of.
7 Answers
...
Equation (expression) parser with precedence?
...sing your sample string,
1+11*5
to do this manually, you would have to read the 1, then see the plus and start a whole new recursive parse "session" starting with 11... and make sure to parse the 11 * 5 into its own factor, yielding a parse tree with 1 + (11 * 5).
This all feels so painful even...
Resumable downloads when using PHP to send the file?
...s 0 if it's not a partial content request
fseek($file, $offset);
$data = fread($file, $length);
fclose($file);
if ( $partialContent ) {
// output the right headers for partial content
header('HTTP/1.1 206 Partial Content');
header('Content-Range: bytes ' . $offset . '-' . ($offset +...
Cannot read configuration file due to insufficient permissions
...etwork Services, Local System, etc.), should have permission to access and read web.config file.
Update:
This updated answer is same as above, but a little longer and simpler and improved.
First of all: you don't have to change anything in your config file. It's OK. The problem is with windows fi...
Bash Templating: How to build configuration files from templates with Bash?
...assuming that variables do not contain ${...} strings):
#!/bin/bash
while read -r line ; do
while [[ "$line" =~ (\$\{[a-zA-Z_][a-zA-Z_0-9]*\}) ]] ; do
LHS=${BASH_REMATCH[1]}
RHS="$(eval echo "\"$LHS\"")"
line=${line//$LHS/$RHS}
done
echo "$line"
done
. Solution...
Simple C example of doing an HTTP POST and consuming the response
...rintf */
#include <stdlib.h> /* exit */
#include <unistd.h> /* read, write, close */
#include <string.h> /* memcpy, memset */
#include <sys/socket.h> /* socket, connect */
#include <netinet/in.h> /* struct sockaddr_in, struct sockaddr */
#include <netdb.h> /* stru...
Cause of a process being a deadlock victim
...d as a deadlock victim.
No. The SELECT is the victim because it had only read data, therefore the transaction has a lower cost associated with it so is chosen as the victim:
By default, the Database Engine chooses as the deadlock victim the
session running the transaction that is least expen...
How to read attribute value from XmlNode in C#?
...e></N0de><Node> tags and subsequently loop through them and read the attribute "Name".
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Reading a delimited string into an array in Bash
...
In order to convert a string into an array, please use
arr=($line)
or
read -a arr <<< $line
It is crucial not to use quotes since this does the trick.
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How to get an MD5 checksum in PowerShell
...$hash = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::ReadAllBytes($someFilePath)))
Starting in PowerShell version 4, this is easy to do for files out of the box with the Get-FileHash cmdlet:
Get-FileHash <filepath> -Algorithm MD5
This is certainly preferable since ...