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How to turn on front flash light programmatically in Android?
I want to turn on front flash light (not with camera preview) programmatically in Android. I googled for it but the help i found referred me to this page
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Can two different strings generate the same MD5 hash code?
...check whether a certain binary asset is already in our application. But is it possible that two different binary assets generate the same MD5 hash. So is it possible that two different strings generate the same MD5 hash?
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What is the runtime performance cost of a Docker container?
...port mapping (e.g., docker run -p 8080:8080), then you can expect a minor hit in latency, as shown below. However, you can now use the host network stack (e.g., docker run --net=host) when launching a Docker container, which will perform identically to the Native column (as shown in the Redis latenc...
Why can't C# interfaces contain fields?
...mean that every implementation has to separately declare Year ? Wouldn't it be nicer to simply define this in the interface?
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How to reset a timer in C#?
...yTimer.Start();
... is that a hack? :)
Per comment, on Threading.Timer, it's the Change method ...
dueTime Type: System.Int32 The
amount of time to delay before the
invoking the callback method specified
when the Timer was constructed, in
milliseconds. Specify
Timeout.Infinite to pr...
Unzipping files in Python
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import zipfile
with zipfile.ZipFile(path_to_zip_file, 'r') as zip_ref:
zip_ref.extractall(directory_to_extract_to)
That's pretty much it!
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Convert Set to List without creating new List
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You can use the List.addAll() method. It accepts a Collection as an argument, and your set is a Collection.
List<String> mainList = new ArrayList<String>();
mainList.addAll(set);
EDIT: as respond to the edit of the question.
It is easy to see that ...
Add vertical whitespace using Twitter Bootstrap?
What's the best way to add vertical whitespace using Twitter's Bootstrap?
13 Answers
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The cast to value type 'Int32' failed because the materialized value is null
...nulls in different places. ...DefaultIfEmpty(0).Sum(0) can help in this (quite simple) case, where there might be no elements and sql's SUM returns null whereas c# expect 0.
A more general approach is to use ?? which will be translated to COALESCE whenever there is a risk that the generated SQL ret...
How to get index using LINQ? [duplicate]
...not.
Therefore, LINQ does not have an IndexOf method.
However, you can write one yourself:
///<summary>Finds the index of the first item matching an expression in an enumerable.</summary>
///<param name="items">The enumerable to search.</param>
///<param name="predicate...