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Long vs Integer, long vs int, what to use and when?
... inherited from Object, such as hashcode. Java.util.collections methods usually use the boxed (Object-wrapped) versions, because they need to work for any Object, and a primitive type, like int or long, is not an Object.
Another difference is that long and int are pass-by-value, whereas Long and In...
Where is android studio building my .apk file?
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there is no hell, app folder at all
– Shahid Karimi
Sep 6 '15 at 18:55
in n...
Condition within JOIN or WHERE
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The relational algebra allows interchangeability of the predicates in the WHERE clause and the INNER JOIN, so even INNER JOIN queries with WHERE clauses can have the predicates rearrranged by the optimizer so that they may already be excluded durin...
Static linking vs dynamic linking
...prove your product without requiring you to ship anything.
Plugins always call for dynamic linking.
Static linking, means that you can know the code will run in very limited environments (early in the boot process, or in rescue mode).
Static linking can make binaries easier to distribute to diverse ...
How do you remove a specific revision in the git history?
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git rebase -i <after-this-commit>
An editor will be fired up with all the commits in your current branch (ignoring merge commits), which come after the given commit. You can reorder the commits in this list to your heart's content, and you can remove them. The list looks more or less like t...
Indent multiple lines quickly in vi
... the pasted block with the surrounding text.
Also, the shiftwidth setting allows you to control how many spaces to indent.
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Animation CSS3: display + opacity
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to support all browsers.. ?
– david_adler
Oct 25 '13 at 16:41
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show all tags in git log
...commit would not be decorated correctly because parse_object had not been called on the second tag and therefore its tagged field had not been filled in, resulting in none of the tags being associated with the relevant commit.
Call parse_object to fill in this field if it is absent so that the ...
How often should you use git-gc?
...ons that could create many loose objects." Anyone know which commands actually run it?
– Joshua Dance
Jul 8 '14 at 15:36
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How to clear a notification in Android
Is it possible to clear a notification programatically?
14 Answers
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