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using awk with column value conditions
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All awk implementations support both "==" and "~".
– Ed Morton
Feb 7 '13 at 5:00
3
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In PyCharm, how to go back to last location?
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All in all, it has nothing with PyCharm;
In my case, there was a global key combo of another program, that masked Ctrl-Alt-Left
I solve it by remapping "file > settings > keymap > main menu > navigate > back"...
Android Shared preferences for creating one time activity (example) [closed]
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apply() is asynchronous call to perform disk I/O where as commit() is synchronous. So avoid calling commit() from the UI thread.
– Aniket Thakur
Nov 10 '15 at 8:55
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Disable HttpClient logging
...ger.httpclient.wire.content=WARN
Note that if Log4j library is not installed, HttpClient (and therefore JWebUnit) will use logback. In this situation, create or edit logback.xml to include:
<configuration>
<logger name="org.apache" level="WARN" />
<logger name="httpclient...
Read/write to Windows registry using Java
... (directly)
This is pure, Java code.
It uses reflection to work, by actually accessing the private methods in the java.util.prefs.Preferences class. The internals of this class are complicated, but the class itself is very easy to use.
For example, the following code obtains the exact windows di...
Update data in ListFragment as part of ViewPager
... can get by, using its instantiateItem(ViewGroup container, int position) call. It returns reference to fragment at position position. If FragmentStatePagerAdapter already holds reference to fragment in question, instantiateItem just returns reference to that fragment, and doesn't call getItem() to ...
How do you make a WPF slider snap only to discrete integer positions?
All too often I want a WPF slider that behaves like the System.Windows.Forms.TrackBar of old. That is, I want a slider that goes from X to Y but only allows the user to move it in discrete integer positions.
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Eclipse interface icons very small on high resolution screen in Windows 8.1
...rious icons and buttons in the Eclipse (Kepler) interface are very, very small on a laptop with a 3200x1800px screen. The red error decoration that appears to indicate errors on files is difficult to see unless my nose a few cm from the screen.
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Omitting the second expression when using the if-else shorthand
...o an option:
x==2 && dosomething();
dosomething() will only be called if x==2 is evaluated to true. This is called Short-circuiting.
It is not commonly used in cases like this and you really shouldn't write code like this. I encourage this simpler approach:
if(x==2) dosomething();
You...
LINQ To Entities does not recognize the method Last. Really?
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That limitation comes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a First(), which is what you di...