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Why (0-6) is -6 = False? [duplicate]
...
All integers from -5 to 256 inclusive are cached as global objects sharing the same address with CPython, thus the is test passes.
This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementa...
Is there a performance difference between a for loop and a for-each loop?
...
From Item 46 in Effective Java by Joshua Bloch :
The for-each loop, introduced in
release 1.5, gets rid of the clutter
and the opportunity for error by
hiding the iterator or index variable
completely. The resulti...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
...rn is YES, it sends hitTest:withEvent: messages to its subviews.
it starts from the top-level subview, and continues to other views until a subview
returns a non-nil object, or all subviews receive the message.
If a subview returns a non-nil object in the first time, the first hitTest:withEvent: ret...
How can I disable a button on a jQuery UI dialog?
... == "Confirm";
}).attr("disabled", true);
This would prevent :contains() from matching a substring of something else.
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How do I check CPU and Memory Usage in Java?
...ge collection logging. You simply add -verbose:gc to the startup command.
From the Sun documentation:
The command line argument -verbose:gc prints information at every
collection. Note that the format of the -verbose:gc output is subject
to change between releases of the J2SE platform. For ...
Ant task to run an Ant target only if a file exists?
...
This might make a little more sense from a coding perspective (available with ant-contrib: http://ant-contrib.sourceforge.net/):
<target name="someTarget">
<if>
<available file="abc.txt"/>
<then>
...
...
Enterprise app deployment doesn't work on iOS 7.1
...> 'Download').
The actual ipa can remain wherever you always served it from. You'll need to URL-encode the plist's URL before inserting it into the itms-servivces URL's query (although just replacing any &s with %3D might work).
One downside is that the install dialog will now read "dl.drop...
Alarm Manager Example
...t.ALARM_SERVICE);
alarmManager.cancel(sender);
}
}
Set Alarm from Service:
package yourPackage;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
public class YourService extends Service
{
Alarm alarm = new Alar...
Retrieve CPU usage and memory usage of a single process on Linux?
... a CSV using the 'watch' command. What command can I use to get this info from the Linux command-line?
20 Answers
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ListView addHeaderView causes position to increase by one?
...'t care about the click to the header, subtract the number of header views from the position to get the position for your adapter:
listView.addHeaderView(inflater.inflate(
R.layout.my_hdr_layout, null), null, false);
listView.setAdapter(m_adapter);
listView.s...