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Why does direction of index matter in MongoDB?
...d query in the same order as the index will simply return the rows sequentially in the correct order.
Finding a record in a BTree takes O(Log(n)) time. Finding a range of records in order is only OLog(n) + k where k is the number of records to return.
If the records are out of order, the cost coul...
Disabling of EditText in Android
...d instead but it contains bug and it does not work. It would be nice if we all star the issue here: code.google.com/p/android/issues/detail?id=2854
– Viktor Brešan
Mar 3 '11 at 13:13
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Switching from zsh to bash on OSX, and back again?
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All depends on what you expect your terminal window to do when you exit. I find starting a subshell unnecessary and undesirable, myself.
– larsks
May 3 '12 at 15:40
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What's the valid way to include an image with no src?
I have an image that I will dynamically populate with a src later with javascript but for ease I want the image tag to exist at pageload but just not display anything. I know <img src='' /> is invalid so what's the best way to do this?
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uppercase first character in a variable with bash
... Despite being more complex than the best scored answer, this one actually does exactly that: 'uppercase first character in a variable'. Best scored answer does not have that results. Looks like simple answers are upvoted more willingly than the correct ones?
– Krzysztof J...
What's the best way of implementing a thread-safe Dictionary?
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As Peter said, you can encapsulate all of the thread safety inside the class. You will need to be careful with any events you expose or add, making sure that they get invoked outside of any locks.
public class SafeDictionary<TKey, TValue>: IDictionary&...
Sorting a Python list by two fields
...t. You should post your own question separately on SO if it is not specifically related to the answer here or the OP's original question.
– pbible
Nov 23 '15 at 16:59
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Junit: splitting integration test and Unit tests
...hat sort of other solutions there might be apart from annotations or physically separating the classes..
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How to sort a file, based on its numerical values for a field?
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Thank you all, folks! This is wired, because I looked over its man page back and forth several times and I didnt see that option. Ah, I was at a simplified man page. Damn!
– lukmac
Jan 31 '11 at 2...
Mockito: InvalidUseOfMatchersException
...ss))
uses one raw value and one matcher, when it's required to use either all raw values or all matchers. A correct version might read
doNothing().when(cmd).dnsCheck(eq(HOST), any(InetAddressFactory.class))
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