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What resources are shared between threads?
...
From Wikipedia (I think that would make a really good answer for the interviewer :P)
Threads differ from traditional
multitasking operating system
processes in that:
processes are typically independent, while threads ...
MySQL show current connection info
...(GPL)
Protocol version: 10
Connection: localhost via TCP/IP
Server characterset: latin1
Db characterset: latin1
Client characterset: gbk
Conn. characterset: gbk
TCP port: 3306
Uptime: 7 min 16 sec
Threads: 1 Questions: 21 Slow queri...
Where does Jenkins store configuration files for the jobs it runs?
...ns installation folder, you could create a simple jenkins job and run a script that tars all the config files for the jobs: "tar -zcvf jenkins-jobs-configs.tar.gz $(find ${JENKINS_HOME}/jobs -name config.xml -maxdepth 2) ". You could then archive jenkins-jobs-configs.tar.gz
– ...
When is the finalize() method called in Java?
...uld make sense is if your class manages some external resource (like a TCP/IP connection, file ... anything that the Java GC can't handle). In those cases the Closable interface (and the idea behind it) is probably what you want: make .close() close/discard the resource and require the user of your ...
How can I find out if I have Xcode commandline tools installed?
... answered Jan 22 '14 at 1:50
P iP i
23.6k3131 gold badges125125 silver badges221221 bronze badges
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What is “overhead”?
...method that is being used. Examples:
Protocol overhead: Ethernet frames, IP packets and TCP segments all have headers, TCP connections require handshake packets. Thus, you cannot use the entire bandwidth the hardware is capable of for your actual data. You can reduce the overhead by using larger p...
Why would $_FILES be empty when uploading files to PHP?
...d be 100M not 100MB.
Make sure your <form> tag has the enctype="multipart/form-data" attribute. No other tag will work, it has to be your FORM tag. Double check that it is spelled correctly. Double check that multipart/form-data is surrounded by STRAIGHT QUOTES, not smart quotes pasted in fro...
What is the best regular expression to check if a string is a valid URL?
... cc($DIGIT),
'2' . cc('0-4') . cc($DIGIT),
'25' . cc('0-5')
)));
$IPv4address = $dec_octet . ncg('\\.' . $dec_octet, '{3}');
$h16 = cc($HEXDIG, '{1,4}');
$ls32 = ncg($h16 . ':' . $h16 . '|' . $IPv4address);
$IPv6address = ncg(implode('|', array(
ncg($h16 . ':', '{6}') . $ls32,
'::...
Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
... always better to use Temp tables. Here is a nice blog article on it mssqltips.com/sqlservertip/2825/…
– gh9
Jan 25 '14 at 21:59
...
GCM with PHP (Google Cloud Messaging)
...
This code will send a GCM message to multiple registration IDs via PHP CURL.
// Payload data you want to send to Android device(s)
// (it will be accessible via intent extras)
$data = array('message' => 'Hello World!');
// The recipient registration tokens...