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Why is “while ( !feof (file) )” always wrong?
...he result we must use is the return value of scanf, the number of elements converted.
C++, iostreams formatted extraction:
for (int n; std::cin >> n; ) {
consume(n);
}
The result we must use is std::cin itself, which can be evaluated in a boolean context and tells us whether the ...
Making HTTP Requests using Chrome Developer tools
...Chrome Developer Tools' Network tab:
Right-click the Name of the request
Select Copy > Copy as cURL
Paste to the command line (command includes cookies and headers)
Edit request as needed and run
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Eclipse count lines of code
...e way to count lines of code in Eclipse:
using the Search / File... menu, select File Search tab, specify \n[\s]* for Containing text (this will not count empty lines), and tick Regular expression.
Hat tip: www.monblocnotes.com/node/2030
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Android get current Locale, not default
...process from the system property settings, so it will represent the Locale selected on that device when the application was launched. Typically, this is fine, but it does mean that if the user changes their Locale in settings after your application process is running, the value of getDefaultLocale(...
Why isn't my JavaScript working in JSFiddle?
...
Select OnDomready
HTML:
<input id="dButton" type="button" value="test"/>
JavaScript:
addEventListener('load', init, false);
function init()
{
oInput = document.getElementById('dButton');
oInput.onclick = test...
Java's Virtual Machine and CLR
...in run-time environments: bytecode compilation and dynamic compilation. It converts code at runtime prior to executing it natively, for example bytecode into native machine code. The performance improvement over interpreters originates from caching the results of translating blocks of code, and not ...
How to Set focus to first text input in a bootstrap modal after shown
...u can use delay() like following... $('#textareaID').delay(1000).focus().select();
– Tony
May 19 '16 at 22:07
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Cannot download Docker images behind a proxy
...for Mac (or Docker for Windows), just right-click the Docker tray icon and select Preferences (Windows: Settings), then go to Advanced, and under Proxies specify your proxy settings there. Click Apply and Restart and wait until Docker restarts.
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Rearrange columns using cut
...made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
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Hibernate vs JPA vs JDO - pros and cons of each? [closed]
...m heavy database/SQL/stored procedure/JDBC school myself. I can't say I am convert - every technology above still has a place to be. But for general purpose Java 3-tier application (no matter what size) first choice is an ORM technology - preferably JPA 2. Others are to be considered based on such f...