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How do you specify a byte literal in Java?
...te)0);
I believe that will perform the appropriate conversion at compile-time instead of execution time, so it's not actually going to cause performance penalties. It's just inconvenient :(
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Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...：
phoenix = {}
phoenix["memcached"] = {
default = {
timeout = "100",
keepalive = {idle = 10000, size = 100},
},
{host = "127.0.0.1", port = "11211"},
{host = "127.0.0.1", port = "11212"},
{host = "127.0.0.1", port = "11213"},
}
phoenix["rule"] =...
Why can't I use the 'await' operator within the body of a lock statement?
...xit within ExitDisposable.Dispose seems to block indefinitely (most of the time) causing deadlocks as other threads attempt to acquire the lock. I suspect the unreliability of my work around and the reason await statements are not allowed in lock statement are somehow related.
Correct, you have di...
How to display Toast in Android?
...map. When the map is on front, I can handle touch events on that map. Everytime I touch, a AsyncTask is fired up, it downloads some data and makes a Toast that displays the data. Although I start the task on touch event no toast is displayed, not till I close the slider. When the slider is close...
HashMap get/put complexity
...any things. It's usually O(1), with a decent hash which itself is constant time... but you could have a hash which takes a long time to compute, and if there are multiple items in the hash map which return the same hash code, get will have to iterate over them calling equals on each of them to find ...
Could not establish trust relationship for SSL/TLS secure channel — SOAP
... the new server machine have the clock set correctly (i.e. so that the UTC time is correct [ignore local time, it is largely irrelevent]) - this certainly matters for WCF, so may impact regular SOAP?
is there a certificate trust chain issue? if you browse from the server to the soap service, can you...
MySQL “Group By” and “Order By”
...tement first and applying the GROUP BY later:
SELECT * FROM (
SELECT `timestamp`, `fromEmail`, `subject`
FROM `incomingEmails`
ORDER BY `timestamp` DESC
) AS tmp_table GROUP BY LOWER(`fromEmail`)
This is similar to using the join but looks much nicer.
Using non-aggregate columns in a ...
Calculate difference between two datetimes in MySQL
I am storing the last login time in MySQL in, datetime -type filed. When users logs in, I want to get the difference between the last login time and the current time (which I get using NOW() ).
...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...od that is applicable with the argument lists of D1 or D2.
The compile-time application of a conversion from a method group E to a delegate type D is described in the following.
This line really doesn't say anything interesting.
Note that the existence of an implicit conversion from E to ...
Python name mangling
... be quite useful if you write a class that is expected to be extended many times.
If you want to use it for other purposes, you can, but it is neither usual nor recommended.
EDIT: Why is this so? Well, the usual Python style does not emphasize making things private - on the contrary! There are a l...