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Android 4.3 Bluetooth Low Energy unstable
... 11-01 18:37:32.131: WARN/BluetoothGatt(20119): Unhandled exception: java.lang.NullPointerException)
– Lo-Tan
Nov 1 '13 at 22:52
2
...
Singletons vs. Application Context in Android?
...without the code 'Looper.prepare()',the system will report the error "java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()".
– sunhang
Jun 24 '14 at 5:48
...
What is Scala's yield?
...tes a new element into the resulting sequence.
Simple example (from scala-lang)
/** Turn command line arguments to uppercase */
object Main {
def main(args: Array[String]) {
val res = for (a <- args) yield a.toUpperCase
println("Arguments: " + res.toString)
}
}
The corresponding e...
Single huge .css file vs. multiple smaller specific .css files? [closed]
...'s unlikely you'd want to do without one.
http://lesscss.org
http://sass-lang.com
If you don't want to mess around with Ruby, this LESS compiler for Mac is great:
http://incident57.com/less/
Or you could use CodeKit (by the same guys):
http://incident57.com/codekit/
WinLess is a Windows GUI f...
What exactly do “u” and “r” string flags do, and what are raw string literals?
...= sys.getsizeof(r'cioa') == sys.getsizeof(u'cioa') (Ubuntu 16.04 with UTF8 lang). Similarly, type('cioa') == type(r'cioa') == type(u'cioa'). BUT, the raw string interpolation makes a difference, so sys.getsizeof('\ncioa') == sys.getsizeof(u'\ncioa') != sys.getsizeof(r'\ncioa')
...
Dynamically load JS inside JS [duplicate]
...
<!DOCTYPE html> <html lang="en"><head><meta charset="utf-8" /></head><body> <nav></nav> <template class="markdown"> == hello == </template> <te...
How to convert lazy sequence to non-lazy in Clojure
...sults to a file, and even after calling doall, the file contained "clojure.lang.LazySeq@address" instead of the contents of the sequence. Calling vec on value map returned got me what I needed to spit out to the file.
– Jesse Rosalia
Nov 23 '15 at 23:17
...
Difference between wait() and sleep()
...)
sleep() method doesn't release the lock.
sleep() is the method of java.lang.Thread class.
sleep() is the static method - public static void sleep(long millis, int nanos) throws InterruptedException { //... }
after the specified amount of time, sleep() is completed.
sleep() better not to call fro...
How do you declare an interface in C++?
...
@doc: java.lang.Thread has methods and constants that you probably don't want to have in your object. What should the compiler do if you extend from Thread, and another class with the public method checkAccess()? Would you really prefer...
Using comparison operators in Scala's pattern matching system
...dditional information can be found in the documentation https://docs.scala-lang.org/tour/pattern-matching.html , they didn't fit in my case but because this stackoverflow answer is the first suggestion in Google I would like to post my answer which is a corner case of the question above.
My question...