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How do I get indices of N maximum values in a NumPy array?
...copy of an array from unconstrained min to unconstrained max in a reversed order)
– FizBack
Oct 19 '16 at 13:51
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What is the easiest way to ignore a JPA field during persistence?
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This answer comes a little late, but it completes the response.
In order to avoid a field from an entity to be persisted in DB one can use one of the two mechanisms:
@Transient - the JPA annotation marking a field as not persistable
transient keyword in java. Beware - using this keyword, w...
Unique Key constraints for multiple columns in Entity Framework
...et; }
The second parameter in the attribute is where you can specify the order of the columns in the index.
More information: MSDN
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Why must jUnit's fixtureSetup be static?
... it easier to write tests without side-effects. Good tests do not have any order-of-run dependencies (see F.I.R.S.T) and creating fresh instances of the test class and its instance variables for each test is crucial in achieving this. Some testing frameworks reuse the same test class instance for al...
Why should I use Deque over Stack?
...lso as pointed out in the comments, Stack and Deque have reverse iteration orders:
Stack<Integer> stack = new Stack<>();
stack.push(1);
stack.push(2);
stack.push(3);
System.out.println(new ArrayList<>(stack)); // prints 1, 2, 3
Deque<Integer> deque = new ArrayDeque<>...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
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The UTF-8 Byte-order marker will clue Excel 2007+ in to the fact that you're using UTF-8. (See this SO post).
In case anybody is having the same issues I was, .NET's UTF8 encoding class does not output a byte-order marker in a GetBytes() c...
How to get Erlang's release version number from a shell?
...lang:system_info(otp_release). only returns the major version number.
In order to get the full version number it is necessary to check the contents of the OTP_RELEASE file under the already mentioned releases folder.
$ which erl
/usr/bin/erl
$ cd /usr/bin
$ ls -l erl
../lib/erlang/bin/erl
$ cd .....
IE7 Z-Index Layering Issues
...ou explicitly define how things overlap, even without z-index the layering order is well defined. Finally, IE6 has an additional bug that causes selectboxes and iframes to float on top of everything else.
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Format XML string to print friendly XML string
...);
mStream.Flush();
// Have to rewind the MemoryStream in order to read
// its contents.
mStream.Position = 0;
// Read MemoryStream contents into a StreamReader.
StreamReader sReader = new StreamReader(mStream);
// Extract the text from the ...
Why Large Object Heap and why do we care?
...nt. The cache is a really big deal on modern processors, they are an easy order of magnitude faster than the memory bus.
Compacting is done simply by copying bytes. That however takes time. The larger the object, the more likely that the cost of copying it outweighs the possible CPU cache usage ...