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How to append text to an existing file in Java?
... most popular are Log4j and Logback.
Java 7+
If you just need to do this one time, the Files class makes this easy:
try {
Files.write(Paths.get("myfile.txt"), "the text".getBytes(), StandardOpenOption.APPEND);
}catch (IOException e) {
//exception handling left as an exercise for the reade...
Rollback to last git commit
...
git reset --hard
If you want to remove also your latest commit (is the one with the message "blah") then better to use:
git reset --hard HEAD^
To remove the untracked files (so new files not yet added to the index) and folders use:
git clean --force -d
...
git pull while not in a git directory
... git grep foo)
for d in d1 d2 d3; do (cd $d && git svn rebase); done
The methods shown above are acceptable for scripting but are too cumbersome for quick command line invocations.
With this new option, the above can be done with fewer keystrokes:
git -C ~/foo status
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Installing Python 3 on RHEL
...ython3 in specified separate directories under /opt and manually set which one to use or test.
– rsc
Feb 13 '13 at 11:27
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Is there a recommended way to return an image using ASP.NET Web API
...priate bytes doesn't serialize itself as the image bytes as you'd expect.
One possible solution is to return an HttpResponseMessage with the image stored in its content (as shown below). Remember that if you want the URL you showed in the question, you'd need a route that maps the {imageName}, {wid...
Chmod recursively
I have an archive, which is archived by someone else, and I want to automatically, after I download it, to change a branch of the file system within the extracted files to gain read access. (I can't change how archive is created).
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Is there a DesignMode property in WPF?
...
Indeed there is:
System.ComponentModel.DesignerProperties.GetIsInDesignMode
Example:
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
public class MyUserControl : UserControl
{
public MyUserControl()
{
...
PHP prepend associative array with literal keys?
... As a late note, ksort returns boolean, so the above needs to be done as two statements not one, e.g. $a = $array1 + $array2; ksort($a);, otherwise $resulting_array will be a boolean value not the array you were expecting.
– El Yobo
Oct 17 '11 at 22:39...
Why can a class not be defined as protected?
.... open in Kotlin which permits subclassing outside of the current package (one could imagine protected in Java preventing that, with the opposite default).
– Raphael
Oct 11 '18 at 9:17
...
sql “LIKE” equivalent in django query
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contains and icontains mentioned by falsetru make queries like SELECT ... WHERE headline LIKE '%pattern%
Along with them, you might need these ones with similar behavior:
startswith, istartswith, endswith, iendswith
making
SELECT ... WHERE headline...