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What is a NullPointerException, and how do I fix it?
...he evidence provided by the stack trace, the source code, and the relevant API documentation.
Let's illustrate with the simple example (above) first. We start by looking at the line that the stack trace has told us is where the NPE happened:
int length = foo.length(); // HERE
How can that throw ...
How to filter specific apps for ACTION_SEND intent (and set a different text for each app)
...ice , I'd prefer to do it using intents and not using the Facebook/Twitter APIs.
12 Answers
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Why would one omit the close tag?
...s a misconception that experts were drawn to / target audience of unwieldy APIs).
SCMs and modern IDEs provide builtin solutions mostly alleviating close tag caretaking.
Discouraging any use of the ?> close tag merely delays explaining basic PHP processing behaviour and language semantics to es...
What's the difference between Ruby's dup and clone methods?
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Nothing has changed in Rails 5 either: api.rubyonrails.org/classes/ActiveRecord/…. So I believe there's something special in your case...
– jvalanen
Aug 3 '16 at 10:59
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What is the difference in maven between dependency and plugin tags in pom xml?
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@AndrewLogvinov - I have a multi pom project for api automation testing. One of the maven projects has automation tests. The build section of the project pom had only 1 plugin - maven surefire plugin with reference to a suite. The entire build tag was removed. Could you ple...
Changing the background drawable of the searchview widget
... <item name="searchViewEditQuery">@android:drawable/ic_commit_search_api_holo_dark</item>
<item name="searchViewEditQueryBackground">?attr/selectableItemBackground</item>
We see that for default theme the value is @drawable/textfield_searchview_holo_dark. For Theme.Ligh...
ASP.NET MVC View Engine Comparison
... Maintainability and refactorability can suffer due to this.
No documented API, http://msdn.microsoft.com/en-us/library/system.web.razor.aspx
Con Example #1 (notice the placement of "string[]..."):
@{
<h3>Team Members</h3> string[] teamMembers = {"Matt", "Joanne", "Robert"};
f...
Parse JSON in C#
I'm trying to parse some JSON data from the Google AJAX Search API. I have this URL and I'd like to break it down so that the results are displayed. I've currently written this code, but I'm pretty lost in regards of what to do next, although there are a number of examples out there with simplifie...
deciding among subprocess, multiprocessing, and thread in Python?
... That's not quite true, AFAIK you can release the GIL using the C API, and there are other implementations of Python such as IronPython or Jython which don't suffer from such limitations. I didn't downvote though.
– Bastien Léonard
Apr 13 '10 at 13:17...
Fastest way to iterate over all the chars in a String
...e parallel version) are a bust. Way slower than any other way. The Streams API is a rather slow way to perform general string operations.
Wish List
Java String could have predicate accepting optimized methods such as contains(predicate), forEach(consumer), forEachWithIndex(consumer). Thus, without t...