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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
...ting thread makes the reference to the map visible to other threads.
Basically, the only possible race here is between the construction of the HashMap and any reading threads that may access it before it is fully constructed. Most of the discussion is about what happens to the state of the map obje...
ListView item background via custom selector
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I've been frustrated by this myself and finally solved it. As Romain Guy hinted to, there's another state, "android:state_selected", that you must use. Use a state drawable for the background of your list item, and use a different state drawable for listSelector of yo...
Why does Boolean.ToString output “True” and not “true”
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Only people from Microsoft can really answer that question. However, I'd like to offer some fun facts about it ;)
First, this is what it says in MSDN about the Boolean.ToString() method:
Return Value
Type: System.String
TrueString if the value...
HTML form readonly SELECT tag/input
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We could also use this
Disable all except the selected option:
<select>
<option disabled>1</option>
<option selected>2</option>
<option disabled>3</option>
</select>
This way the dropdown still...
jQuery checkbox event handling
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Just a small tip. You will get a performance boost by using input:checkbox in your selector instead of just :checkbox since the latter is translated to the universal selector *:checkbox.
– jimmystormig
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Any tips on how to organize Eclipse environment on multiple monitors?
...Explorer, Search, Console, Ant and Outline views.
This way I get focus to all of my Eclipse stuff when I click on it in the taskbar or alt-tab. I can also overlay another window (usually my browser or a trace viewer) on the right hand monitor. I use SemTop to pin the overlayed window if I want to c...
Git will not init/sync/update new submodules
...mmit (i.e. the record of the submodule's commit ID) wasn't.
Adding it manually seemed to do the trick - e.g.:
git submodule add http://github.com/sciyoshi/pyfacebook.git external/pyfacebook
(Even without removing anything from .git/config or .gitmodules.)
Then commit it to record the ID properl...
Correct way to detach from a container without stopping it
...aseimage-docker/#intro)
If you want a container that run in detached mode all the time, i suggest you use
docker run -d foo
With an ssh server on the container. (easiest way is to follow the dockerizing openssh tutorial https://docs.docker.com/engine/examples/running_ssh_service/)
Or you can ju...
Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
... and bundling them with Adware (Google GIMP Sourceforge Adware). Avoid at all costs. GitHub is as of now still the most popular one, although there are alternatives (e.g., BitBucket offers unlimited private repos for free for up to 5 users.)
It's crazy how much the landscape changed in the past fe...
Java List.contains(Object with field value equal to x)
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@EricJablow Perhaps you should comment on ALL of the answers that don't perform null checks, as opposed to just one (mine).
– Josh M
Sep 17 '13 at 20:53
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