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When to use reinterpret_cast?
...cified in the standard, and it may not be true on machines with more complex memory systems.)
For casting to and from void*, static_cast should be preferred.
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How to read XML using XPath in Java
I want to read XML data using XPath in Java, so for the information I have gathered I am not able to parse XML according to my requirement.
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Apache POI Excel - how to configure columns to be expanded?
I am using Apache POI API to generate excel spreadsheet to output some data.
11 Answers
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Get the value of checked checkbox?
...odern browsers:
var checkedValue = document.querySelector('.messageCheckbox:checked').value;
By using jQuery:
var checkedValue = $('.messageCheckbox:checked').val();
Pure javascript without jQuery:
var checkedValue = null;
var inputElements = document.getElementsByClassName('messageCheckbox'...
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
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The same issue appears for me when executing an sqlalchemy query, how would I encode the query (has no .encode, since its not a string)?
– c8999c 3f964f64
Jul 3 at 9:27
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Split list into smaller lists (split in half)
... edited Sep 16 '18 at 23:31
maxymoo
27.4k77 gold badges6969 silver badges9696 bronze badges
answered Apr 15 '09 at 15:49
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How do I use the new computeIfAbsent function?
...y();
}
}
Then you will see the message creating a value for "snoop" exactly once as on the second invocation of computeIfAbsent there is already a value for that key. The k in the lambda expression k -> f(k) is just a placeolder (parameter) for the key which the map will pass to your lambda...
How to copy a directory using Ant
...e difference is not so subtle when you can't load your resources with the expected pathnames.
– Jim Pivarski
Jul 10 '13 at 18:48
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Failed to build gem native extension (installing Compass)
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This fixes the error on Ubuntu, but it seems OP is using OSX.
– mhnagaoka
Oct 8 '14 at 5:33
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Print an integer in binary format in Java
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Assuming you mean "built-in":
int x = 100;
System.out.println(Integer.toBinaryString(x));
See Integer documentation.
(Long has a similar method, BigInteger has an instance method where you can specify the radix.)
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