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Captured variable in a loop in C#
...(C#, .NET 4.0].
See the following code:
Purpose is to print 1,2,3,4,5 in order.
for (int counter = 1; counter <= 5; counter++)
{
new Thread (() => Console.Write (counter)).Start();
}
The output is interesting! (It might be like 21334...)
The only solution is to use local variables.
...
XPath - Selecting elements that equal a value
.... defines the string value of an element as the concatenation (in document order) of all of its text-node descendents.
This explains the "strange results".
"Better" results can be obtained using the expressions below:
//*[text() = 'qwerty']
The above selects every element in the document that ...
The smallest difference between 2 Angles
...)
It returns the signed delta angle. Note that depending on your API the order of the parameters for the atan2() function might be different.
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Java RegEx meta character (.) and ordinary dot?
...ep it means "word boundary".
So write -?\d+\.\d+\$ to match 1.50$, -2.00$ etc. and [(){}[\]] for a character class that matches all kinds of brackets/braces/parentheses.
If you need to transform a user input string into a regex-safe form, use java.util.regex.Pattern.quote.
Further reading: Jan Go...
Capturing URL parameters in request.GET
I am currently defining regular expressions in order to capture parameters in a URL, as described in the tutorial. How do I access parameters from the URL as part the HttpRequest object?
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Detect home button press in android
...d or when home button is pressed. Unfortunatelly I didn't manage to change order of calls of onPause() method of the starting activity and onResume() of the started actvity when Activity.startActivity() is called (or detect in onPause() that activity is launching another activity other way) so this ...
How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
... Any fast food restaurant uses multithread. One thread takes you order and use another thread to prepare it, and continues with the next customer. The synchronization point works only when they interchange information to know what to prepare. Following a model like that really simplifies ...
How to return an NSMutableArray from an NSSet
...
For an ordered set use:
NSArray *myArray = [[myOrderedSet array] mutableCopy];
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Get all keys of an NSDictionary as an NSArray
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the order of keys returned by allKeys is undefined... so allKeys.firstObject or allKeys][0] is dangerous either way
– Brad Thomas
Feb 24 '17 at 19:39
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Regular Expression to match string starting with “stop”
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/stop([a-zA-Z])+/
Will match any stop word (stop, stopped, stopping, etc)
However, if you just want to match "stop" at the start of a string
/^stop/
will do :D
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