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@RequestBody and @ResponseBody annotations in Spring
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220
There is a whole Section in the docs called 16.3.3.4 Mapping the request body with the @Reques...
How to prevent gcc optimizing some statements in C?
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92
Turning off optimization fixes the problem, but it is unnecessary. A safer alternative is to ma...
What does numpy.random.seed(0) do?
...>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
With the seed reset (every time), the same set of numbers will appear every time.
If the random seed is not res...
Is it a good idea to use Google Guava library for Android development?
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edited Feb 19 '19 at 20:39
Samir Elekberov
31833 silver badges1313 bronze badges
answered Feb 20 '1...
How to read data from a zip file without having to unzip the entire file
...teLine("Comment: {0}", zip.Comment);
System.Console.WriteLine("\n{1,-22} {2,8} {3,5} {4,8} {5,3} {0}",
"Filename", "Modified", "Size", "Ratio", "Packed", "pw?");
System.Console.WriteLine(new System.String('-', 72));
header = false;
}
Syste...
Why is there no Convert.toFloat() method?
...y C#. There's a Convert.ToSingle() method, just like there's
Convert.ToInt32() instead of Convert.ToInt().
See this thread Convert class
(BTW - I didn't know this either, so I learned something new today :) )
share
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rsync: difference between --size-only and --ignore-times
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edited Dec 26 '19 at 7:51
Fernando Silveira
67288 silver badges2020 bronze badges
answere...
Cost of exception handlers in Python
...'a={}'.format(a))
print("a = {}\n{}".format(a,s))
print("%.2f usec/pass\n" % (1000000 * t.timeit(number=100000)/100000))
Result:
a = 1
try:
b = 10/a
except ZeroDivisionError:
pass
0.25 usec/pass
a = 1
if a:
b = 10/a
0.29 usec/pass
a = 1
b = 10/a
0.22 usec/pass
a = 0...
Using Rails serialize to save hash to database
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Dave Newton
150k2222 gold badges232232 silver badges280280 bronze badges
answered Jul 15 '11 at 4:47
Benjamin Tan Wei...
Java EE 6 @javax.annotation.ManagedBean vs. @javax.inject.Named vs. @javax.faces.ManagedBean
...y could not predict the future requirements and they made EJB 1.0 and then 2.0 and then 3.0 and now 3.1 but EJB's target was for just some requirements (transaction, distributed component model, etc).
At the same time (in parallel) they realized that they need to support JSF too, then they made JSF...