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Java synchronized method lock on object, or method?
... }
}
I think if the Java designers knew then what is understood now about synchronization, they would not have added the syntactical sugar, as it more often than not leads to bad implementations of concurrency.
sh...
Fastest way(s) to move the cursor on a terminal command line?
... to implement command line input. And so to say, it is very convenient to know Readline bindings since it is used not only in bash. For example, gdb also uses Readline to process input.
In Readline documentation you can find all navigation related bindings (and more):
http://www.gnu.org/software/ba...
'await' works, but calling task.Result hangs/deadlocks
...
changing to async Task worked, now I need to read the contents of your links a couple of times, ty sir.
– Johan Larsson
Jun 22 '13 at 9:13
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Lists in ConfigParser
...ause it does automatically "cast" values which can be useful if you don't know the types beforehand.
– LeGBT
Oct 26 '14 at 21:26
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How to delete a specific line in a file?
...ng along the line as it's read. Once that line has been read the cursor is now past it. When you try to write into the file you write where the cursor currently is. By re-opening the file you reset the cursor.
– Waddas
Aug 6 '14 at 20:48
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How to map and remove nil values in Ruby
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Ruby 2.7+
There is now!
Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.ev...
Markdown vs markup - are they related?
I'm using markdown to edit this question right now. In some wikis I used wiki markup. Are they the same thing? Are they related? Please explain. If I want to implement one or the other in a web project (like stackoverflow) what do I need to use?
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Java executors: how to be notified, without blocking, when a task completes?
...@Zelphir It was a Callback interface that you declare; not from a library. Nowadays I'd probably just use Runnable, Consumer, or BiConsumer, depending on what I need to pass back from the task to the listener.
– erickson
Jan 29 '16 at 15:52
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Getting the caller function name inside another function in Python? [duplicate]
... doesn't work, they have changed the order of the tuples. A named tuple is now being used so it's best to use inspect.stack()[1].filename
– timeyyy
Mar 23 '16 at 18:53
3
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Change Circle color of radio button
...droid:checked="false"
android:layout_height="wrap_content"
/>
Now all you need to do is make a radiobutton_drawable.xml in your drawable folder. Here is what you need to put in it:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/r...