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Programmatically change log level in Log4j2
...gger level (not the root logger or loggers configured in the configuration file) you can do this:
public static void setLevel(Logger logger, Level level) {
final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
final Configuration config = ctx.getConfiguration();
Logge...
How to quickly check if folder is empty (.NET)?
...directory on disk is empty. It means, that it does not contain any folders/files. I know, that there is a simple method. We get array of FileSystemInfo's and check if count of elements equals to zero. Something like that:
...
How to enable PHP's openssl extension to install Composer?
...or the location of your PHP installation.
Go to that location and edit the file named: php.ini.
Uncomment the line extension=php_openssl.dll by removing the semicolon at the beginning.
Now you are good to install Composer.
...
read.csv warning 'EOF within quoted string' prevents complete reading of file
I have a CSV file (24.1 MB) that I cannot fully read into my R session. When I open the file in a spreadsheet program I can see 112,544 rows. When I read it into R with read.csv I only get 56,952 rows and this warning:
...
c# open file with default application and parameters
The most easy way to open a file with the default application is:
5 Answers
5
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What is the difference between sites-enabled and sites-available directory?
...are not enabled yet.
sites-available: this directory has configuration files for Apache2 Virtual Hosts. Virtual Hosts allow Apache2 to be configured for
multiple sites that have separate configurations.
sites-enabled: like mods-enabled, sites-enabled contains symlinks to
the /etc/apache...
Combining Multiple Commits Into One Prior To Push
...10154e updated README formatting and added blame
pick a5f4a0d added cat-file
It's important to note that these commits are listed in the opposite order than you normally see them using the log command. Means, the older commit will be shown first.
2) Change 'pick' to 'squash' for last committ...
Unable to execute dex: Multiple dex files define
... for me turns out another developer added a new version of a library jar file without deleting the old one. So there were two jars with same classes. Thus the error 'Multiple dex files...' You could do a grep -r 'OffendingClassName' | grep jar$ to search for jar files that contain the class name....
Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
How can I read an image file into bitmap from sdcard?
4 Answers
4
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How can I change my Cygwin home folder after installation?
...g this is to make your Cygwin home directory equal to your Windows user profile directory. This setting will do that:
db_home: windows
Or, equivalently:
db_home: /%H
You need to use the latter form if you want some variation on this scheme, such as to segregate your Cygwin home files into a su...