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How to make an array of arrays in Java
...rays are cumbersome, in most cases you are better off using the Collection API.
With Collections, you can add and remove elements and there are specialized Collections for different functionality (index-based lookup, sorting, uniqueness, FIFO-access, concurrency etc.).
While it's of course good an...
How to check file MIME type with javascript before upload?
...ould.
if (window.FileReader && window.Blob) {
// All the File APIs are supported.
} else {
// File and Blob are not supported
}
Step 1:
You can retrieve the File information from an <input> element like this (ref):
<input type="file" id="your-files" multiple>
<scr...
What exactly does Perl's “bless” do?
...any ways to get under the hood. Some of them are useful for autogenerating APIs, validation tools, autodocumenting APIs; we can't predict all the use cases. Shooting oneself in the foot is also a possible outcome of such trickery.
– DavidO
Nov 9 '19 at 16:43
...
What is the difference between javac and the Eclipse compiler?
... doesn't suffer from any such "differences" since it uses javac's internal API to do everything that EJC does.
– Aleksandr Dubinsky
May 19 '15 at 13:16
| ...
Is ServiceLocator an anti-pattern?
...e the services internally.
But a much better example is ASP.NET MVC and WebApi. What do you think makes the dependency injection possible in the controllers? That's right -- service location.
Your questions
But wait a second, if we were using DI approach, we would introduce a
dependency with anothe...
Working Soap client example
...ramework (it is shipped with JSE 1.6 and above):
SOAP with Attachments API for Java (SAAJ) is mainly used for dealing directly with SOAP Request/Response messages which happens behind the scenes in any Web Service API. It allows the developers to directly send and receive soap messages instead o...
.NET 4.0 has a new GAC, why?
...oth locations
should only be accessed or modified
using the native GAC APIs, which deal
with the partitioning as expected. The
places where this does surface are
through APIs that expose the paths of
the GAC such as GetCachePath, or
examining the path of mscorlib loaded
into managed ...
getViewTypeCount and getItemViewType methods of ArrayAdapter
...you don't implement these two methods intuitively according to the Android API Doc, then you might get into the problem I mentioned about.
Summarized Guideline for the implementation:
To implement multiple types of Views for ListView's rows we have to essentially implement, getItemViewType() and g...
Which @NotNull Java annotation should I use?
...3305ecd1b415e2ab1b9ef8a9120b4
javax.validation.constraints from validation-api-1.0.0.GA-sources.jar
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How to throw a C++ exception
... MWE on GitHub, where a backtrace would look something like this:
Library API: Exception caught in function 'api_function'
Backtrace:
~/Git/mwe-cpp-exception/src/detail/Library.cpp:17 : library_function failed
~/Git/mwe-cpp-exception/src/detail/Library.cpp:13 : could not open file "nonexistent.txt"...