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Can one do a for each loop in java in reverse order?
... actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list.
As a more efficient solution, you could write a decorator that presents a reversed view of a List as an Iterable. The iter...
How to avoid soft keyboard pushing up my layout? [duplicate]
... r = new Rect();
rootView.getWindowVisibleDisplayFrame(r);
int heightDiff = rootView.getRootView().getHeight() - (r.bottom - r.top);
if (heightDiff > 100) { // if more than 100 pixels, its probably a keyboard...
//ok now we know the keyboard is up...
...
What C++ Smart Pointer Implementations are available?
...pying and assignment in certain situations. Specifically it can be used to convert a non-const std::auto_ptr to an lvalue using the Colvin-Gibbons trick also known as a move constructor to transfer ownership.
On the contrary perhaps std::auto_ptr wasn't really intended to be used as a general purpo...
How can one print a size_t variable portably using the printf family?
I have a variable of type size_t , and I want to print it using printf() . What format specifier do I use to print it portably?
...
Postgres: INSERT if does not exist already
...LICT DO NOTHING/UPDATE
It solves many of the subtle problems you can run into when using concurrent operation, which some other answers propose.
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How to scale an Image in ImageView to keep the aspect ratio
...Yes, by default Android will scale your image down to fit the ImageView, maintaining the aspect ratio. However, make sure you're setting the image to the ImageView using android:src="..." rather than android:background="...". src= makes it scale the image maintaining aspect ratio, but background= ma...
Measuring elapsed time with the Time module
...append(elapsed_time)
return ret
return with_profiling
def print_prof_data():
for fname, data in PROF_DATA.items():
max_time = max(data[1])
avg_time = sum(data[1]) / len(data[1])
print "Function %s called %d times. " % (fname, data[0]),
print 'Execut...
Use 'class' or 'typename' for template parameters? [duplicate]
...
Stan Lippman talked about this here. I thought it was interesting.
Summary: Stroustrup originally used class to specify types in templates to avoid introducing a new keyword. Some in the committee worried that this overloading of the keyword led to confusion. Later, the committ...
Large, persistent DataFrame in pandas
...memory problems with read_csv on large files caused by some complex Python internal issues (this is vague but it's been known for a long time: http://github.com/pydata/pandas/issues/407).
At the moment there isn't a perfect solution (here's a tedious one: you could transcribe the file row-by-row i...
How to add a custom HTTP header to every WCF call?
....Name, httpRequestMessage);
}
return null;
}
Then create an endpoint behavior that applies the message inspector to the client runtime. You can apply the behavior via an attribute or via configuration using a behavior extension element.
Here is a great example of how to add an HTTP user-...