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Using FileSystemWatcher to monitor a directory
...ying. I removed all of the notify filters except for LastWrite.
private void watch()
{
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = path;
watcher.NotifyFilter = NotifyFilters.LastWrite;
watcher.Filter = "*.*";
watcher.Changed += new FileSystemEventHandler(OnChanged)...
Why is Class.newInstance() “evil”?
...erwise be performed by the compiler. The Constructor.newInstance method avoids this problem by wrapping any exception thrown by the constructor in a (checked) InvocationTargetException.
In other words, it can defeat the checked exceptions system.
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Open a file from Cygwin
...and "cygstart" that I noticed when running under Cygwin's bash shell. Consider the following two commands: 1) cygstart programThatCrashes.exe 2) cmd /c start programThatCrashes.exe Also, programThatCrashes.exe is a Win32 console program that just crashes. Both launch a new console window to ...
Printing all global variables/local variables?
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@KennyTM ,isn't static variables inside function stored the same way as static variables outside function(in the symbol table)?
– cpuer
Jun 7 '11 at 7:20
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How to output loop.counter in python jinja template?
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The counter variable inside the loop is called loop.index in jinja2.
>>> from jinja2 import Template
>>> s = "{% for element in elements %}{{loop.index}} {% endfor %}"
>>> Template(s).render(elements=["a", "b", "c", "d"]...
ValueError: math domain error
...your newtonRaphson2 function does, I'm not sure I can guess where the invalid x[2] value is coming from, but hopefully this will lead you on the right track.
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How to append multiple values to a list in Python
...om any kind of iterable, being it another list or any other thing that provides a sequence of values.
>>> lst = [1, 2]
>>> lst.append(3)
>>> lst.append(4)
>>> lst
[1, 2, 3, 4]
>>> lst.extend([5, 6, 7])
>>> lst.extend((8, 9, 10))
>>> ls...
MySQL select with CONCAT condition
...M
users
HAVING firstlast = "Bob Michael Jones"
Here is a working SQL Fiddle.
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The type must be a reference type in order to use it as parameter 'T' in the generic type or method
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Helped as well:) Thanks :) As a side note, I think we shouldn't copy the same constrait again and again if it's already applied in interface, IMO.
– Celdor
Nov 23 '14 at 20:09
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Clicking the back button twice to exit an activity
I've noticed this pattern in a lot of Android apps and games recently: when clicking the back button to "exit" the application, a Toast comes up with a message similar to "Please click BACK again to exit".
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