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Efficiency of premature return in a function
...ced programmer and am wondering about particularly for an ambitious, speed-intensive project of mine I'm trying to optimize. For the major C-like languages (C, objC, C++, Java, C#, etc) and their usual compilers, will these two functions run just as efficiently? Is there any difference in the comp...
How to retrieve the dimensions of a view?
...s, I thought I'd post a solution that I have found. I have added this code into my onCreate() method:
EDITED: 07/05/11 to include code from comments:
final TextView tv = (TextView)findViewById(R.id.image_test);
ViewTreeObserver vto = tv.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGl...
Identify duplicates in a List
I have a List of type Integer eg:
31 Answers
31
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How do I truncate a .NET string?
... database table and want to ensure that the values I write meet the constraint of the column's datatype.
33 Answers
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Numpy matrix to array
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This will convert the matrix into array
A = np.ravel(M).T
share
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Is there a Python function to determine which quarter of the year a date is in?
...y to check for yourself what formula is right:
for m in range(1, 13):
print m//4 + 1,
print
gives 1 1 1 2 2 2 2 3 3 3 3 4 -- two four-month quarters and a single-month one (eep).
for m in range(1, 13):
print (m-1)//3 + 1,
print
gives 1 1 1 2 2 2 3 3 3 4 4 4 -- now doesn't this look vastly ...
Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?
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As others have pointed out in the comments, the "universal" constructor is not, in fact, supposed to always move from its argument. It's supposed to move if the argument is really an rvalue, and copy if it's an lvalue.
The behaviour, you obs...
fastest (low latency) method for Inter Process Communication between Java and C/C++
...actly 0.1 microsecond, while doing a primitive string concatenation only:
int j=123456789;
String ret = "my-record-key-" + j + "-in-db";
P.P.P.S - hope this is not too much off-topic, but finally I tried replacing Thread.sleep(0) with incrementing a static volatile int variable (JVM happens to f...
Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax
I'm trying to pass an array of objects into an MVC controller method using
jQuery's ajax() function. When I get into the PassThing() C# controller method,
the argument "things" is null. I've tried this using a type of List for
the argument, but that doesn't work either. What am I doing wrong?
...
Difference between StringBuilder and StringBuffer
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and StringBuilder is intended as a drop in replacement for StringBuffer where synchronisation is not required
– Joel
Dec 23 '09 at 8:52
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