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Only variables should be passed by reference
...explode to a variable and pass that variable to end:
$tmp = explode('.', $file_name);
$file_extension = end($tmp);
The problem is, that end requires a reference, because it modifies the internal representation of the array (i.e. it makes the current element pointer point to the last element).
Th...
Activity restart on rotation Android
...n within the Activity override the onConfigurationChanged method and call setContentView to force the GUI layout to be re-done in the new orientation.
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setContentView(R.layout.myLayou...
Join strings with a delimiter only if strings are not null or empty
...r(x => x)) removes all "falsy" values (nulls, undefineds, empty strings etc). If your definition of "empty" is different, then you'll have to provide it, for example:
[...].filter(x => typeof x === 'string' && x.length > 0)
will only keep non-empty strings in the list.
--
(obs...
Windows XP or later Windows: How can I run a batch file in the background with no window displayed?
I know I have already answered a similar question ( Running Batch File in background when windows boots up ), but this time I need to launch a batch:
...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
... to script writing and can't get this one to work. I could if I moved the files to a path without a space in it, but I'd like it to work with the space if it could.
...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...xe
Open Microsoft SQL Management Studio.
Backup original database to .BAK file (db -> Task -> Backup).
Create empty database with new name (clone). Note comments below as this is optional.
Click to clone database and open restore dialog (see image)
Select Device and add the backup file from...
How do you reverse a string in place in C or C++?
...forward for this problem, but the code would be less portable to C#, Java, etc.
– user1899861
Nov 27 '14 at 2:14
2
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Get specific line from text file using just shell script
I am trying to get a specific line from a text file.
10 Answers
10
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Handle spring security authentication exceptions with @ExceptionHandler
...cationException) throws IOException, ServletException {
response.setContentType("application/json");
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
response.getOutputStream().println("{ \"error\": \"" + authenticationException.getMessage() + "\" }");
}
}
In ...
Easy way to write contents of a Java InputStream to an OutputStream
...
You should preferFiles.copy as much as possible. It is implemented in native code and therefore can be faster. transferTo should be used only if both streams are not FileInputStream/FileOutputStream.
– ZhekaKozlov
...