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Why does String.valueOf(null) throw a NullPointerException?
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A bug, numbered 4867608 was filed for this way back in 2003, which was resolved as "won't fix" with this explanation.
We can't change this due to compatibility constraints. Note that it is
the public static String valueOf(char data[]) method which ends...
Setting DIV width and height in JavaScript
... styles is to use a CSS class selector and put your styles in external CSS files. Not only will your code be much more maintainable, but you'll actually make friends with your Web designers!
document.getElementById("div_register").setAttribute("class","wide");
.wide {
display:block;
width:...
Symfony2 : How to get form validation errors after binding the request to the form
...direct user upon error and display {{ form_errors(form) }} within template file
access error array as $form->getErrors()
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How to get Url Hash (#) from server side
...se the wrapper DIV as it allows all this Javascript to live in an external file and be used in a generic fashion.
If the hidden input field has a valid value, set that as the URL hash (window.location.hash again) and/or perform other actions.
We used jQuery to simplify the selecting of the field, ...
Why does MYSQL higher LIMIT offset slow the query down?
... for record no. 10000, which in turn is supposed to be fast as seeking the file to that offset multiplied by index record length, ( ie, seeking 10000*8 = byte no 80000 - given that 8 is the index record length )
– Rahman
Dec 20 '10 at 20:00
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What does “Content-type: application/json; charset=utf-8” really mean?
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One character, because a single numeral is a valid JSON file
– Nayuki
Oct 28 '19 at 3:29
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Maven dependency for Servlet 3.0 API?
...d...
Brabster separate dependencies have been replaced by Java EE 6 Profiles. Is there a source that confirms this assumption?
The maven repository from Java.net indeed offers the following artifact for the WebProfile:
<repositories>
<repository>
<id>java.net2</id&g...
How to search for occurrences of more than one space between words in a line
...).
The problem with \s{2,} is that it will also match newlines on Windows files (where newlines are denoted by CRLF or \r\n which is matched by \s{2}.
If you also want to find multiple tabs and spaces, use [ \t]{2,}.
shar...
Exception.Message vs Exception.ToString()
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I'd say @Wim is right. You should use ToString() for logfiles - assuming a technical audience - and Message, if at all, to display to the user. One could argue that even that is not suitable for a user, for every exception type and occurance out there (think of ArgumentExceptions...
How to get the full path of running process?
... // Or whatever method you are using
string fullPath = process.MainModule.FileName;
//fullPath has the path to exe.
There is one catch with this API, if you are running this code in 32 bit application, you'll not be able to access 64-bit application paths, so you'd have to compile and run you ap...