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Java List.add() UnsupportedOperationException
...to other List implementations that are either immutable or only allow some selected changes.
You can find out about this by reading the documentation of UnsupportedOperationException and List.add(), which documents this to be an "(optional operation)". The precise meaning of this phrase is explaine...
Get url parameters from a string in .NET
...;', ';' }, StringSplitOptions.RemoveEmptyEntries)
.Select(parameter => parameter.Split(new[] { '=' }, StringSplitOptions.RemoveEmptyEntries))
.GroupBy(parts => parts[0],
parts => parts.Length > 2 ? string.Jo...
“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass
...Hope)
+ (void)load
{
Method existing = class_getInstanceMethod(self, @selector(layoutSubviews));
Method new = class_getInstanceMethod(self, @selector(_autolayout_replacementLayoutSubviews));
method_exchangeImplementations(existing, new);
}
- (void)_autolayout_replacementLayoutSubviews...
How to remove focus without setting focus to another control?
...ocus() btw--I wasn't aware of this.) When I click the first button, make a selection, and then return, the first button can no longer receive focus. I'm not setting focusable for this button anywhere in my code. I'd like to show you my code, but there aren't enough characters available in this editi...
Open firewall port on CentOS 7
...
When making changes to the firewall settings in Permanent mode, your
selection will only take effect when you reload the firewall or the
system restarts.
You can reload the firewall settings with: firewall-cmd --reload.
...
Python list directory, subdirectory, and files
...n i[2]] for i in os.walk('./')] for val in sublist]
# Meta comment to ease selecting text
The outer most val for sublist in ... loop flattens the list to be one dimensional. The j loop collects a list of every file basename and joins it to the current path. Finally, the i loop iterates over all di...
What is the point of “final class” in Java?
...
@Goran globally applying final, yes. The key is to selectively apply final in places where you don't want modification (and of course to provide good hooks for extension)
– Sean Patrick Floyd
Mar 3 '11 at 14:17
...
How to recursively delete an entire directory with PowerShell 2.0?
... it useful to see what I'm about to delete by running
Get-Tree some_dir | select fullname
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How to switch between hide and view password
...able (deprecated) or app:endIconDrawable then use custom drawable like <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/ic_eye_close" android:state_checked="true"/> <item android:drawable="@drawable/ic_eye_open"/> </selector...
How can I view an old version of a file with Git?
...sion, (corresponding to the "patch" radio button).
To see the file for the selected revision:
Click on the "tree" radio button. This will show the root of the file tree at that revision.
Drill down to your file.
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