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Collect successive pairs from a stream
...enient static methods to create the stream from Collection, array, Reader, etc. Edited the answer.
– Tagir Valeev
May 30 '15 at 16:06
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BackgroundWorker vs background Thread
... tweaking the thread priority, fine-grained control over thread execution, etc.
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What is “Power Save Mode” in IntelliJ IDEA and other Jetbrains IDEs?
...onstructs e.g. missing docblocks, assignment inside conditional statements etc will not (assuming you have those inspections enabled). This means that you can save battery power when using your laptop and choose to run the inspections only occasionally by turning power save mode off for a minute or ...
Android Studio installation on Windows 7 fails, no JDK found
... Java path then follow the tip 1.
Tip 1
When you set the path JAVA_HOME, etc., make sure not to include bin at the end of the path. This solved the issue for me.
JAVA_HOME => C:\Program Files\Java\jdk1.7.0_21
path => C:\Program Files\Java\jdk1.7.0_21\bin
It works fine with JDK 1.7 (I trie...
In Python, when to use a Dictionary, List or Set?
...g from zero - the first one is numbered zero, the
second 1, the third 2, etc. You can remove values from the list, and
add new values to the end. Example: Your many cats' names.
Dictionaries are similar to what their name suggests - a dictionary.
In a dictionary, you have an 'index' of wo...
How to count certain elements in array?
...Say hello to your friends: map and filter and reduce and forEach and every etc.
(I only occasionally write for-loops in javascript, because of block-level scoping is missing, so you have to use a function as the body of the loop anyway if you need to capture or clone your iteration index or value. ...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...ass.newInstance() is strongly discouraged. It's recommended to use Class.getConstructor(), followed by Constructor.newInstance() in turn. It avoids masking possible exceptions.
– L S
Mar 27 '13 at 14:57
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
...ter_initialize couldn't easily be moved to before_validation, before_save, etc. Chances are that eventually one of the devs on your team will execute something like MyModel.all.each perhaps for bulk processing of some kind, and thus run this initialization logic MyModel.count num of times.
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How to use the CSV MIME-type?
... a .csv file, so the user can directly open it with calc, excel, gnumeric, etc.
4 Answers
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Difference between scaling horizontally and vertically for databases [closed]
... involves downtime.
In-Memory Data Grids such as GigaSpaces XAP, Coherence etc.. are often optimized for both horizontal and vertical scaling simply because they're not bound to disk. Horizontal-scaling through partitioning and vertical-scaling through multi-core support.
You can read more on this s...