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How to convert/parse from String to char in java?
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If your string contains exactly one character the simplest way to convert it to a character is probably to call the charAt method:
char c = s.charAt(0);
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Sorting a Python list by two fields
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how will i proceed if i want to sort ascending on one element and descending on other, using itemgetter??.
– ashish
Oct 12 '13 at 10:13
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How do I get the file extension of a file in Java?
...n from Apache Commons IO
Here is an example of how to use it (you may specify either full path or just file name):
String ext1 = FilenameUtils.getExtension("/path/to/file/foo.txt"); // returns "txt"
String ext2 = FilenameUtils.getExtension("bar.exe"); // returns "exe"
Maven dependency:
<depe...
How to distinguish mouse “click” and “drag”
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I think the difference is that there is a mousemove between mousedown and mouseup in a drag, but not in a click.
You can do something like this:
const element = document.createElement('div')
element.innerHTML = 'test'
document.body.appe...
Is there any way to close a StreamWriter without closing its BaseStream?
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If you are using .NET Framework 4.5 or later, there is a StreamWriter overload using which you can ask the base stream to be left open when the writer is closed.
In earlier versions of .NET Framework prior to 4.5, StreamWri...
How to check if element exists using a lambda expression?
Specifically, I have TabPane, and I would like to know if there is element with specific ID in it.
3 Answers
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Does MS SQL Server's “between” include the range boundaries?
...ETWEEN operator is inclusive.
From Books Online:
BETWEEN returns TRUE if the value of
test_expression is greater than or
equal to the value of begin_expression
and less than or equal to the value of
end_expression.
DateTime Caveat
NB: With DateTimes you have to be careful; if only a ...
Insert text into textarea with jQuery
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How about if the result is coming from a PHP page and handled by jQuery? (in between data is transmitted using Json)
– Abu Rayane
Apr 1 '16 at 6:31
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How do I erase an element from std::vector by index?
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With advance you must save the iterator in a variable. If you use std::next you can do it in one line: vec.erase( next(begin(vec), 123) );
– dani
Oct 5 '16 at 20:36
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Hashset vs Treeset
...t.
It's quite safe to accept default load factor but you may want to specify an initial capacity that's about twice the size to which you expect the set to grow.
TreeSet
guarantees log(n) time cost for the basic operations (add, remove and contains)
guarantees that elements of set will be sor...