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Calculating how many minutes there are between two times
I have a datagridview in my application which holds start and finish times. I want to calculate the number of minutes between these two times. So far I have got:
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PostgreSQL: Which Datatype should be used for Currency?
... have to deal with multiple currencies you'll need that much precision for converting. No matter what I'm presenting a user, I always store to US Dollar. In that way I can readily convert to any other currency, given the conversion rate for the day involved.
If you never do anything but one curre...
Android Spinner : Avoid onItemSelected calls during initialization
I created an Android application with a Spinner and a TextView . I want to display the selected item from the Spinner's drop down list in the TextView. I implemented the Spinner in the onCreate method so when I'm running the program, it shows a value in the TextView (before selecting an item ...
What are 'get' and 'set' in Swift?
I'm learning Swift and I'm reading The Swift Programming Language from Apple, I have no Objective C background (only PHP, JS, and other but no Obj C)
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How to document a method with parameter(s)?
... This is closer to what I expected. Unfortunately, I picked plain PEP 257 and added my own convention (at the cost of loosing autogenerated HTML/PDF documentation). However, next time, I will pick this solution. Thanks.
– David Andreoletti
Apr 11 '12 at 5:51
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Python: Why is functools.partial necessary?
...h lambdas?
Not much in terms of extra functionality (but, see later) – and, readability is in the eye of the beholder.
Most people who are familiar with functional programming languages (those in the Lisp/Scheme families in particular) appear to like lambda just fine – I say "most", definitely...
Size-limited queue that holds last N elements in Java
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That's a good candidate, but, alas, it doesn't use generics :(
– GreyCat
Apr 15 '11 at 10:49
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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
...lace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
}, $str);
In case it's UTF-16 based C/C++/Java/Json-style:
$str = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
return mb_convert_enco...
Resizing an Image without losing any quality [closed]
...d start with a Bitmap image that is, say, twice as large as it needs to be and then scale down. The resulting image should be pretty smooth.
– Pretzel
Nov 21 '08 at 20:54
2
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How does a ArrayList's contains() method evaluate objects?
Say I create one object and add it to my ArrayList . If I then create another object with exactly the same constructor input, will the contains() method evaluate the two objects to be the same? Assume the constructor doesn't do anything funny with the input, and the variables stored in both objec...