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Static method behavior in multi-threaded environment in java
...d try and explain at a slightly more simple level for anybody who comes across this and is newish to Java. Here goes..
Memory in java is split up into two kinds - the heap and the stacks. The heap is where all the objects live and the stacks are where the threads do their work. Each thread has its ...
How can I see the current value of my $PATH variable on OS X?
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for MacOS, make sure you know where the GO install
export GOPATH=/usr/local/go
PATH=$PATH:$GOPATH/bin
share
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improve this answe...
How to run a process with a timeout in Bash? [duplicate]
...issing or has different command line arguments. See an alternate solution posted by @ArjunShankar . Based on it you can encapsulate that boiler-plate code and create your own portable timeout script or small C app that does the same thing.
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System.currentTimeMillis vs System.nanoTime
...tem.currentTimeMillis() or System.nanoTime() when updating my object's positions in my game? Their change in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
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How to exit from the application and show the home screen?
...s not favor exiting an application by choice, but rather manages it by the OS. You can bring up the Home application by its corresponding Intent:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i...
Finding local IP addresses using Python's stdlib
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import socket
socket.gethostbyname(socket.gethostname())
This won't work always (returns 127.0.0.1 on machines having the hostname in /etc/hosts as 127.0.0.1), a paliative would be what gimel shows, use socket.getfqdn() instead. Of course your mach...
Using the Android Application class to persist data
...ass does not have the same life-cycle (i.e. it is, for all intents and purposes, always instantiated). Does it make sense to store the state information inside of the application class and then reference it from the Activity, or is that generally not the "acceptable" method due to memory constraint...
How do malloc() and free() work?
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OK some answers about malloc were already posted.
The more interesting part is how free works (and in this direction, malloc too can be understood better).
In many malloc/free implementations, free does normally not return the memory to the operating system (or at l...
How does Apple find dates, times and addresses in emails?
In the iOS email client, when an email contains a date, time or location, the text becomes a hyperlink and it is possible to create an appointment or look at a map simply by tapping the link. It not only works for emails in English, but in other languages also. I love this feature and would like to ...
Best way to make Django's login_required the default
...ication, this model will work. If this isn't a one-to-one fit, you may choose to modify the middleware to suit your circumstances more closely.
What I like about this approach - besides removing the necessity of littering the codebase with @login_required decorators - is that if the authentication...