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Does Java SE 8 have Pairs or Tuples?
...class be final or not? Should the two elements be ordered? Should it be an interface or a class? Why stop at pairs? Why not triples, quads, or N-tuples?
And of course there is the inevitable naming bikeshed for the elements:
(a, b)
(first, second)
(left, right)
(car, cdr)
(foo, bar)
etc.
One bi...
Integer division with remainder in JavaScript?
...s perhaps not desired: 3.5 % 2 evaluates to 1.5. Make sure to handle (parseInt, floor, etc.) as required
– user166390
Nov 19 '10 at 19:09
...
Wrapping a C library in Python: C, Cython or ctypes?
...f openEx(serial):
serial = create_string_buffer(serial)
handle = c_int()
if d2xx.FT_OpenEx(serial, OPEN_BY_SERIAL_NUMBER, byref(handle)) == OK:
return Handle(handle.value)
raise D2XXException
class Handle(object):
def __init__(self, handle):
self.handle = handle
...
Is there a way to access the “previous row” value in a SELECT statement?
...ach one is distinct:
select rank() OVER (ORDER BY id) as 'Rank', value into temp1 from t
select t1.value - t2.value from temp1 t1, temp1 t2
where t1.Rank = t2.Rank - 1
drop table temp1
If you need to break ties, you can add as many columns as necessary to the ORDER BY.
...
SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
...call ntdll32!__RtlUserThreadStart (772e9d1b)
772e9d15 cc int 3
772e9d16 90 nop
772e9d17 90 nop
772e9d18 90 nop
772e9d19 90 nop
772e9d1a 90 nop
772e9d1b 6a14 push 14h
772e9d1d 6890c32d77...
Hide keyboard when scroll UITableView
...t hide keyboard when i start scrolling UITableView. I search about this in internet, and most answer is subclassing UITableView (http://stackoverflow.com/questions/3499810/tapping-a-uiscrollview-to-hide-the-keyboard).
...
How to concatenate strings in twig
...lde (~), like Alessandro said, and here it is in the documentation:
~: Converts all operands into strings and concatenates them. {{ "Hello
" ~ name ~ "!" }} would return (assuming name is 'John') Hello John!. – http://twig.sensiolabs.org/doc/templates.html#other-operators
And here is an e...
How do I restrict a float value to only two places after the decimal point in C?
...the correct answer. However, if you actually want to round the floating point value for further computation, something like the following works:
#include <math.h>
float val = 37.777779;
float rounded_down = floorf(val * 100) / 100; /* Result: 37.77 */
float nearest = roundf(val * 100) / ...
How to add parameters to HttpURLConnection using POST using NameValuePair
... For best performance, you should call either setFixedLengthStreamingMode(int) when the body length is known in advance, or setChunkedStreamingMode(int) when it is not. Otherwise HttpURLConnection will be forced to buffer the complete request body in memory before it is transmitted, wasting (and po...
Debug.Assert vs Exception Throwing
...
@AnorZaken: Your point illustrates a design flaw in exceptions. As I've noted elsewhere, exceptions are (1) fatal disasters, (2) boneheaded mistakes that should never happen, (3) design failures where an exception is used to signal a non-except...