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What is the difference between a HashMap and a TreeMap? [duplicate]
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TreeMap is an example of a SortedMap, which means that the order of the keys can be sorted, and when iterating over the keys, you can expect that they will be in order.
HashMap on the other hand, makes no such guarantee. Therefore, when iterating over the keys of a HashMap, you can...
Can one do a for each loop in java in reverse order?
I need to run through a List in reverse order using Java.
13 Answers
13
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MySQL order by before group by
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Using an ORDER BY in a subquery is not the best solution to this problem.
The best solution to get the max(post_date) by author is to use a subquery to return the max date and then join that to your table on both the post_author an...
How to filter logcat in Android Studio?
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Is there a regex to negate this, in order to hide the logs that contain a line?
– Hugo M. Zuleta
Nov 22 '16 at 18:49
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Possible to iterate backwards through a foreach?
...rrect method for this task. Plus, for as much as foreach is implemented in-order, the construct itself is built for expressing loops that are independent of element indexes and iteration order, which is particularly important in parallel programming. It is my opinion that iteration relying on order ...
What is boilerplate code?
...te code" is any seemingly repetitive code that shows up again and again in order to get some result that seems like it ought to be much simpler.
It's a subjective definition.
The term comes from "boilerplate" in the newspaper industry: wiki
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File Upload in WebView
... it has an image preview feature, if you want to make it work use a simple php upload without preview.
Update:
Please find the solution for lollipop devices here and thanks for gauntface
Update 2:
Complete solution for all android devices till oreo here and this is more advanced version, you sh...
How to randomize (or permute) a dataframe rowwise and columnwise?
...2
a b c
3 0 1 0
4 0 0 0
2 1 0 0
1 1 1 0
By default sample() randomly reorders the elements passed as the first argument. This means that the default size is the size of the passed array. Passing parameter replace=FALSE (the default) to sample(...) ensures that sampling is done without replacem...
Resolve absolute path from relative path and/or file name
...n of Batch techniques and example scripts is robvanderwoude.com/batchfiles.php . See also stackoverflow.com/questions/245395/…
– hfs
Oct 31 '12 at 9:27
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Is main() really start of a C++ program?
... don't have full control prior to main, you don't have full control on the order in which the static blocks get initialized.
After main, your code is conceptually "fully in control" of the program, in the sense that you can both specify the instructions to be performed and the order in which to per...