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Android: show soft keyboard automatically when focus is on an EditText
...x using AlertDialog . The EditText inside the dialog itself is automatically focused when I call AlertDialog.show() , but the soft keyboard is not automatically shown.
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What's the difference between “ ” and “ ”?
...ers are supposed to be self-contained. An outside link to codepen is also allowed, if the full answer is also included in the post directly. To adhere to SO policy, edit your post to either include the resulting output of the code in your answer, or to add SO's own embedded version of codepen, so ...
How to group time by hour or by 10 minutes
...
finally done with
GROUP BY
DATEPART(YEAR, DT.[Date]),
DATEPART(MONTH, DT.[Date]),
DATEPART(DAY, DT.[Date]),
DATEPART(HOUR, DT.[Date]),
(DATEPART(MINUTE, DT.[Date]) / 10)
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Best practices/performance: mixing StringBuilder.append with String.concat
...t can fit both s1 and s2. Copies s1 and s2 contents to this new array. Actually requires less work then + operator.
StringBuilder.append()
Maintains an internal char[] array that grows when needed. No extra char[] is created if the internal one is sufficiently big.
stringBuilder.append(s1.concat(...
Iterating through a list in reverse order in java
...es the elegance of the for each syntax. +1 anyway.
– Allain Lalonde
Jan 20 '10 at 15:35
26
Callin...
How to convert linq results to HashSet or HashedSet
...
I don't think there's anything built in which does this... but it's really easy to write an extension method:
public static class Extensions
{
public static HashSet<T> ToHashSet<T>(
this IEnumerable<T> source,
IEqualityComparer<T> comparer = null)
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How do I run a Python program?
...thon code file somewhere, using "Save" or "Save as" in your editor. Lets call it 'first.py' in some folder, like "pyscripts" that you make on your Desktop.
Open a prompt (a Windows 'cmd' shell that is a text interface into the computer):
start > run > "cmd" (in the little box). OK.
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Make Visual Studio understand CamelCase when hitting Ctrl and cursor keys
...that I can configure Visual Studio 2008 to understand CamelCase? Specifically, I'd like to be able to get Ctrl + right or left cursor to take me to a subsection of a variable or type name.
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How to 'grep' a continuous stream?
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I use the tail -f <file> | grep <pattern> all the time.
It will wait till grep flushes, not till it finishes (I'm using Ubuntu).
share
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improve this answer
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Reasons for using the set.seed function
...he set.seed function in R, before starting the program. I know it's basically used for the random number generation. Is there any specific need to set this?
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