大约有 31,100 项符合查询结果（耗时：0.0470秒） [XML]
How to read multiple text files into a single RDD?
...wildcards and even CSV of directories and wildcards. E.g.:
sc.textFile("/my/dir1,/my/paths/part-00[0-5]*,/another/dir,/a/specific/file")
As Nick Chammas points out this is an exposure of Hadoop's FileInputFormat and therefore this also works with Hadoop (and Scalding).
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What does the star operator mean, in a function call?
...actory, that makes Car objects and returns them.
You could make it so that myFactory.make_car('red', 'bmw', '335ix') creates Car('red', 'bmw', '335ix'), then returns it.
def make_car(*args):
return Car(*args)
This is also useful when you want to call a superclass' constructor.
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How to specify function types for void (not Void) methods in Java8?
...need to change your method signature to somewhat like:
public static void myForEach(List<Integer> list, Consumer<Integer> myBlock) {
list.forEach(myBlock);
}
And then you should be able to create a consumer, using a static method reference, in your case by doing:
myForEach(theList...
Inserting HTML elements with JavaScript
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Fair enough. My apologies. I just feel that there're so many abstractions on here with zero caveats mentioned.
– Crescent Fresh
May 3 '09 at 13:12
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Using Application context everywhere?
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In my experience this approach shouldn't be necessary. If you need the context for anything you can usually get it via a call to View.getContext() and using the Context obtained there you can call Context.getApplicationContext(...
How to force garbage collection in Java?
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In my experience, this method always invokes the garbage collector. It does so with enough regularity that my plots of memory use versus number of objects declared are always strictly linear (accounting for padding, etc.).
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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:
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How to get overall CPU usage (e.g. 57%) on Linux [closed]
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top -bn1 seems wildly inaccurate on my FC20 system. top -bn2 seems to work well.
– Martin Tournoij
Feb 19 '14 at 0:58
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How should I print types like off_t and size_t?
...ize_t and t for ptrdiff_t like in
printf("%zu %td", size, ptrdiff);
But my manpage says some older library used a different character than z and discourages use of it. Nevertheless, it's standardized (by the C99 standard). For those intmax_t and int8_t of stdint.h and so on, there are macros you ...
What is the difference between :focus and :active?
... font-weight: bold; }
</style>
<button>
When clicked, my text turns red AND bold!<br />
But not when focused only,<br />
where my text just turns red
</button>
edit: jsfiddle
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