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What to learn for making Java web applications in Java EE 6? [closed]
.... I've found the Head First books to be pretty good.
For web programming, raw Servlets are important enough just to understand the request/response cycle but you don't need a deep understanding to make a leap to a 3rd party framework.
I'm a big fan of Stripes for an Action framework (vs a componen...
How does Facebook Sharer select Images and other metadata when sharing my URL?
...t Facebook accepting the changes?
Once a url has been shared, Facebook's crawler, which has a user agent of facebookexternalhit/1.1 (+https://www.facebook.com/externalhit_uatext.php), will access your page and cache the meta information. To force Facebook servers to clear the cache, use the Facebo...
When is std::weak_ptr useful?
...tr is a very good way to solve the dangling pointer problem. By just using raw pointers it is impossible to know if the referenced data has been deallocated or not. Instead, by letting a std::shared_ptr manage the data, and supplying std::weak_ptr to users of the data, the users can check validity o...
Class with single method — best approach?
...s standardised. There's nothing worse than looking over a business layer sprawling with different implementation methods.
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Convert ArrayList to String[] array [duplicate]
...information of what the <T> is at runtime. All it knows is that the raw element type is Object. By contrast, in the other case, the array parameter gives the base type of the array. (If the supplied array is big enough to hold the list elements, it is used. Otherwise a new array of the sam...
What is the runtime performance cost of a Docker container?
...on-CPU hardware); there's significant overhead around memory paging... but raw floating-point? I'd want to look at what was actually going on there -- perhaps excessive context switches.
– Charles Duffy
Jan 8 '15 at 3:38
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Why prefer two's complement over sign-and-magnitude for signed numbers?
... signed or unsigned integer or a double or a string or something else. The raw data is whatever type you choose to interpret it as.
– Welbog
Jul 2 '15 at 19:23
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Xcode 4.2 debug doesn't symbolicate stack call
...handlers, it can be only one way to go.
When app crashes, and you get your raw first throw call stack (in hex numbers), type into Xcode console info line *hex (don't forget star and 0x hex specifier), for example:
(gdb) info line *0x2658
Line 15 of "path/to/file/main.m" starts at address 0x25f2 <...
Why does std::getline() skip input after a formatted extraction?
...to true by this function is because the point of std::getline() is to read raw, unformatted characters into a std::basic_string<charT> object.
The Solution:
There's no way to stop this behavior of std::getline(). What you'll have to do is discard the new line yourself before std::getline() ru...
Java - get pixel array from image
...fferByte) image.getRaster().getDataBuffer()).getData();
call returns the raw Pixel Array data in such a fashion that each byte contains more than one pixel.
So when you use a Monochrome Bitmap image to create your BufferedImage object then this is the algorithm you want to use:
/**
* This retur...