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StringBuilder vs String concatenation in toString() in Java
...ion, it will be because it is not worth it. In 99% of cases, the compiler knows better which optimization is worth it, so as a rule of thumb the dev should not interfere. Of course, your situation may fall into the other 1%, but that can only be checked by (careful) benchmarking.
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How to add new line into txt file
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You could do it easily using
File.AppendAllText("date.txt", DateTime.Now.ToString());
If you need newline
File.AppendAllText("date.txt",
DateTime.Now.ToString() + Environment.NewLine);
Anyway if you need your code do this:
TextWriter tw = new StreamWriter("date.txt", ...
How to get current timestamp in string format in Java? “yyyy.MM.dd.HH.mm.ss”
...me old date-time classes such as java.util.Date and java.sql.Timestamp are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle.
– Basil Bourque
Dec 24 '18 at 20:01
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Can I embed a custom font in an iPhone application?
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Custom Font Support
Applications that want to use custom fonts can now include those fonts in their application bundle and register those fonts with the system by including the UIAppFonts key in their Info.plist file. The value of this key is an array of strings identifying the font files in...
Displaying a message in iOS which has the same functionality as Toast in Android
I need to know if there is any method in iOS which behaves like Toast messages in Android. That is, I need to display a message which is dismissed automatically after few seconds. This is similar to the functionality of the Toast class in the Android environment.
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Interface defining a constructor signature?
...far:
public interface IDrawable
{
void Update();
void Draw();
}
Now create an abstract class with the constructor you want to enforce. Actually, since it's now available since the time you wrote your original question, we can get a little fancy here and use generics in this situation so ...
Inspect hovered element in Chrome?
...m, when I "inspect element", nothing shows for the tooltip in the html. I know I can set the Style to :hover , but I still can't see the html or css of the tooltip.
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How do I compare two DateTime objects in PHP 5.2.8?
...jects can be compared using comparison operators.
$date1 = new DateTime("now");
$date2 = new DateTime("tomorrow");
var_dump($date1 == $date2); // false
var_dump($date1 < $date2); // true
var_dump($date1 > $date2); // false
For PHP versions before 5.2.2 (actually for any version), you can ...
Using socket.io in Express 4 and express-generator's /bin/www
...ect. After Express Js 4 was lauched, i've updated my express-generator and now the app initial functions goes into ./bin/www file, including those vars (www file contents: http://jsfiddle.net/avMa5/ )
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How to check if an app is installed from a web-page on an iPhone?
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As far as I know you can not, from a browser, check if an app is installed or not.
But you can try redirecting the phone to the app, and if nothing happens redirect the phone to a specified page, like this:
setTimeout(function () { wind...