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What is the concept of erasure in generics in Java?
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It's basically the way that generics are implemented in Java via compiler trickery. The compiled generic code actually just uses java.lang.Object wherever you talk about T (or some other type parameter) - and there's some metadata to t...
Create a custom View by inflating a layout?
...reate a Compound Control. You'll create a subclass of RelativeLayout, add all our your components in code (TextView, etc), and in your constructor you can read the attributes passed in from the XML. You can then pass that attribute to your title TextView.
http://developer.android.com/guide/topics...
How to get Enum Value from index in Java?
... Note that will clone a copy of the values array each time, so if you are calling this in the inner loop of performance sensitive code you might want to make a static copy and use that.
– Christopher Barber
Oct 4 '13 at 0:11
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Size of character ('a') in C/C++
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In C, the type of a character constant like 'a' is actually an int, with size of 4 (or some other implementation-dependent value). In C++, the type is char, with size of 1. This is one of many small differences between the two languages.
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What is the correct way to represent null XML elements?
...l is the correct way to represent a value such that:
When the DOM Level 2 call getElementValue() is issued, the NULL value is returned.
xsi:nil is also used to indicate a valid element with no content even if that elements content type normally doesn't allow empty elements.
If an empty tag is used,...
How do I fix a merge conflict due to removal of a file in a branch?
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I normally just run git mergetool and it will prompt me if I want to keep the modified file or keep it deleted. This is the quickest way IMHO since it's one command instead of several per file.
If you have a bunch of deleted files...
How do I run git log to see changes only for a specific branch?
...e/master branch. After running git-pull and git-log , the log will show all commits in the remote tracking branch as well as the current branch. However, because there were so many changes made to the remote branch, I need to see just the commits made to the current local branch.
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...ules cannot be imported from zipfiles.
The default search path is installation dependent, but generally
begins with prefix/lib/pythonversion (see PYTHONHOME above). It is
always appended to PYTHONPATH.
An additional directory will be inserted in the search path in front
of PYTHONPATH...
Refreshing web page by WebDriver when waiting for specific condition
...fresh() in its request header says "no-cache" and, as a result, unconditionally reloads all content. Whereas pressing F5 could result in a "If-Modified-Since" request, that could get a "304 Not Modified" response. You have to keep that difference in mind, if you do load testing.
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How to convert Linux cron jobs to “the Amazon way”?
...ds and no other cron worker will execute
the job. The lock will automatically be released after the TTL has
expired. This is conceptually very similar to the SQS option we
discussed yesterday.
Also see; Google's chubby
http://static.googleusercontent.com/external_content/untrusted_dlcp...