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java.net.ConnectException: localhost/127.0.0.1:8080 - Connection refused
I am using xampp apache server to serve resources to the application from my machine. But i am getting the above error.
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Best algorithm for detecting cycles in a directed graph [closed]
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has the pseudo-code for one algorithm, and a brief description of another from Tarjan. Both have O(|V| + |E|) time complexity.
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Rotating videos with FFmpeg
...2,transpose=2" for 180 degrees.
Make sure you use a recent ffmpeg version from here (a static build will work fine).
Note that this will re-encode the audio and video parts. You can usually copy the audio without touching it, by using -c:a copy. To change the video quality, set the bitrate (for ex...
What are free monads?
...if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an operation (you can think of addition) and some identity (like zero).
So
class Mono...
Set theme for a Fragment
...container, Bundle savedInstanceState) {
// create ContextThemeWrapper from the original Activity Context with the custom theme
final Context contextThemeWrapper = new ContextThemeWrapper(getActivity(), R.style.yourCustomTheme);
// clone the inflater using the ContextThemeWrapper
La...
href=“tel:” and mobile numbers
... but there is no reason you would not add the simple "+" to make them work from everywhere! (tel:+1847... would work for calling a US number from anywhere in the world).
– Ecuador
May 4 '17 at 13:42
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Is it faster to count down than it is to count up?
...s stuff is almost certainly irrelevant as there isn't a simple 1-1 mapping from instructions to clock cycles. (Though I could imagine it coming up if you were doing things like generating precisely timed video signals from a microcontroller. But then you'd write in assembly language anyway.)
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When should I use C++ private inheritance?
...{
// Cannot be instantiated
};
Sealed can be instantiated. It derives from ClassSealer and can call the private constructor directly as it is a friend.
FailsToDerive won't compile as it must call the ClassSealer constructor directly (virtual inheritance requirement), but it cannot as it is pri...
How to exclude a module from a Maven reactor build?
...e -pl !<module_name>,!<module_name> to exclude certain modules from the reactor build.
See this feature request: https://issues.apache.org/jira/browse/MNG-5230
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Try-finally block prevents StackOverflowError
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following the math, yup. the last stack overflow from the last finally which failed to stack overflow will exit with... stack overflow =P. couldn't resist.
– WhozCraig
Sep 15 '12 at 23:13
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