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When should we use intern method of String on String literals
According to String#intern() , intern method is supposed to return the String from the String pool if the String is found in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned.
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Beyond Stack Sampling: C++ Profilers
...rofiler output (AQtime, Sleepy, XPerf, etc). Once the visualization has pointed out the offending function(s), jump back to the raw profile data to get better hints on what the real cause is.
The gprof2dot tool generates a dot graph description that you then feed into a graphviz tool. The output i...
Which is the fastest algorithm to find prime numbers?
...perations for the SoE up to a range of about a billion. Much above that point, one generally needs to use page segmentation to overcome memory limitations, and that is where the SoA fails, taking rapidly increasing amounts of constant overhead with increasing range.
– GordonBG...
List directory in Go
... log.Fatal(err)
}
for _, f := range files {
fmt.Println(f.Name())
}
}
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Why should I not wrap every block in “try”-“catch”?
...rrors in your data access code so that the part of the application that is interacting with domain objects is not exposed to the fact that there is a DB under the hood somewhere.
There are a few related code smells that you definitely want to avoid in addition to the "catch everything everywhere" s...
C# DropDownList with a Dictionary as DataSource
...nd setting TextField to "key" and ValueField to Value. I think that's more intuitive.
– MGOwen
May 2 '12 at 12:41
15
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Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
...ng 4.3).
A variant of ObjectFactory designed specifically for injection points,
allowing for programmatic optionality and lenient not-unique handling.
and use its getObject(Object... args) method
Return an instance (possibly shared or independent) of the object
managed by this factory.
Allows for...
Linux: is there a read or recv from socket with timeout?
...o add a time out to your recv function using poll in C:
struct pollfd fd;
int ret;
fd.fd = mySocket; // your socket handler
fd.events = POLLIN;
ret = poll(&fd, 1, 1000); // 1 second for timeout
switch (ret) {
case -1:
// Error
break;
case 0:
// Timeout
...
What is meaning of boolean value returned from an event-handling method in Android
...
If you return true from an ACTION_DOWN event you are interested in the rest of the events in that gesture. A "gesture" in this case means all events until the final ACTION_UP or ACTION_CANCEL. Returning false from an ACTION_DOWN means you do not want the event and other views w...
Creating Threads in python
...port sleep
def threaded_function(arg):
for i in range(arg):
print("running")
sleep(1)
if __name__ == "__main__":
thread = Thread(target = threaded_function, args = (10, ))
thread.start()
thread.join()
print("thread finished...exiting")
Here I show how to use ...