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The case against checked exceptions
...se of checked exceptions. The client code is going to be full of calls to fetch row data, every one of which is going to have to use a try/catch, and for what? Are they going to report to the user that the wrong row was sought? Probably not - because whatever the UI surrounding my table view is, it ...
What's the difference between passing by reference vs. passing by value?
...00.
Depending on the language's architecture or the type (class, struct, etc.) of your object, you would be either transferring "John" or 0x7fd5d258dd00
Passing "John" is known as passing by value.
Passing 0x7fd5d258dd00 is known as passing by reference. Anyone who is pointing to this memory loca...
Unicode equivalents for \w and \b in Java regular expressions?
...change the API from what it is in this alpha prototype, clean up the code, etc. But it helps us out tremendously, and we figure it will help others, too. I really wish Sun would do something about their library, but Oracle inspires no confidence.
– tchrist
Nov ...
Bootstrap 3 Slide in Menu / Navbar on Mobile [closed]
...for my own project and I'm sharing it this way. Any support, further help, etc., is up to each individual.
– Christina
Jan 1 '14 at 22:57
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Should a Netflix or Twitter-style web service use REST or SOAP? [closed]
... if you're trying to get a map, it's a lot easier to just build a URL and fetch image bytes from that URL than it is to bother with encapsulating it into a SOAP message. But yes, I will agree that if the point of the web service is to transfer some strongly-typed object in a domain object model, SO...
When to use volatile with multi threading?
...+ standard even talks about "read-read coherence", "write-read coherence", etc. One note in the standard even points the connection to hardware:
http://eel.is/c++draft/intro.races#19
[ Note: The four preceding coherence requirements effectively disallow compiler reordering of atomic operati...
C++ project organisation (with gtest, cmake and doxygen)
...nd TEST_F. Value- or Type-parameterised tests using TEST_P, TYPED_TEST_P, etc. aren't handled at all.
The problem doesn't have an easy solution that I know of. The most robust way to get a list of gtest cases is to execute the test exe with the flag --gtest_list_tests. However, this can only be ...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...s happen in parallel, the cpu may be in a low frequency power saving mode, etc. Running the program repeatedly gives you a result that is closer to the ideal case.
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Ship an application with a database
...savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
DatabaseHelper myDbHelper;
SQLiteDatabase myDb = null;
myDbHelper = new DatabaseHelper(this);
/*
* Database must be initialized before it can be used. Th...
Maximum single-sell profit
...e problem for the first element, then the first two, then the first three, etc. until we'd computed it for the first n elements.
Let's think about how to do this. If we have just one element, we already know that it has to be the best buy/sell pair. Now suppose we know the best answer for the fir...