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Cannot delete directory with Directory.Delete(path, true)
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Editor's note: Although this answer contains some useful information, it is factually incorrect about the workings of Directory.Delete. Please read the comments for this answer, and other answers to this question.
I ran into...
Stack Memory vs Heap Memory [duplicate]
...The stack is very much like the std::stack class: you push parameters onto it and then call a function. The function then knows that the parameters it expects can be found on the end of the stack. Likewise, the function can push locals onto the stack and pop them off it before returning from the fun...
How can prepared statements protect from SQL injection attacks?
...in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding some data on the fly. Thus, the data may interfere with the program code and even alter it, as every SQL injection example shows it (all examples in PHP...
Why is there no SortedList in Java?
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List iterators guarantee first and foremost that you get the list's elements in the internal order of the list (aka. insertion order). More specifically it is in the order you've inserted the elements or on how you've manipulated ...
Activity has leaked ServiceConnection @438030a8 that was original
I'm working on my first Android app. I've got three activities in my app, and the user switches back and forth pretty frequently. I've also got a remote service, which handles a telnet connection. The apps need to bind to this service in order to send/receive telnet messages.
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Create an Array of Arraylists
...ayList<Individual>>(4);
As suggested by Tom Hawting - tackline, it is even better to do:
List<List<Individual>> group = new ArrayList<List<Individual>>(4);
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ETag vs Header Expires
...r not to make a request for that file again in the future. If ETag is all it has, it will always have to make a request. However, when the server reads the ETag from the client request, the server can then determine whether to send the file (HTTP 200) or tell the client to just use their local cop...
boost::flat_map and its performance compared to map and unordered_map
It is common knowledge in programming that memory locality improves performance a lot due to cache hits. I recently found out about boost::flat_map which is a vector based implementation of a map. It doesn't seem to be nearly as popular as your typical map / unordered_map so I haven't been able ...
INNER JOIN vs LEFT JOIN performance in SQL Server
...NNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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'Missing contentDescription attribute on image' in XML
I get an warning about [Accessibility]Missing contentDescription attribute on image in eclipse. This warning show at line 5 (declare ImageView ) in XML code below.
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