大约有 40,000 项符合查询结果（耗时：0.0467秒） [XML]
Why is processing a sorted array faster than processing an unsorted array?
...less.
Further reading: "Branch predictor" article on Wikipedia.
As hinted from above, the culprit is this if-statement:
if (data[c] >= 128)
sum += data[c];
Notice that the data is evenly distributed between 0 and 255. When the data is sorted, roughly the first half of the iterations will no...
Why is no one using make for Java?
... possible to write something that generated all the necessary dependencies from Java source code, so that make would build classes in the correct order one at a time, this still wouldn't handle cases such as circular dependencies.
The Java compiler can also be more efficient by caching the compiled...
Which version of CodeIgniter am I currently using?
... to echo a constant when one could either just use the constant or echo it from a view or whereever it is needed?
– Thomas Daugaard
Jun 11 '14 at 13:21
5
...
Hibernate: Automatically creating/updating the db tables based on entity classes
...
You might try changing this line in your persistence.xml from
<property name="hbm2ddl.auto" value="create"/>
to:
<property name="hibernate.hbm2ddl.auto" value="update"/>
This is supposed to maintain the schema to follow any changes you make to the Model each time ...
Closing Hg Branches
...e. (see hg commit)
--close-branch
mark a branch as closed, hiding it from the branch list.
See also this thread:
My expectation is that I close a branch because this line of development has come to a dead end, and I don't want to be bothered with it any more.
Therefore, when a branch h...
Check if my app has a new version on AppStore
...ent is misleading. If the version on the user's device is separated by any from the version on the appstore then the code will return YES as expected. Even if you release version 1.0 followed by version 1.111 it would still work perfectly.
– datinc
Nov 23 '15 a...
Why doesn't Mockito mock static methods?
...t runtime (that's what EasyMock does if I'm not mistaken), or they inherit from the class to mock (that's what Mockito does if I'm not mistaken). Both approaches do not work for static members, since you can't override them using inheritance.
The only way to mock statics is to modify a class' byte ...
Add padding on view programmatically
...
Where is the 0.5f coming from?
– Herr von Wurst
Sep 26 '13 at 22:35
12
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Skip the headers when editing a csv file using Python
...tedly very small amount of) overhead to each iteration. The consume recipe from itertools can be used to skip many values quickly, without adding wrapping to subsequent usage, in the case where the islice would have a start but no end, so the overhead isn't gaining you anything.
...
How to hide Soft Keyboard when activity starts
..._METHOD_SERVICE) as InputMethodManager
inputMethodManager.hideSoftInputFromWindow(windowToken, 0)
}
Alternatives based on use case:
fun Fragment.hideKeyboard() {
view?.let { activity?.hideKeyboard(it) }
}
fun Activity.hideKeyboard() {
// Calls Context.hideKeyboard
hideKeyboard(cu...