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When should I use File.separator and when File.pathSeparator?
...and File.pathSeparator then:
File.pathSeparator is used to separate individual file paths in a list of file paths. Consider on windows, the PATH environment variable. You use a ; to separate the file paths so on Windows File.pathSeparator would be ;.
File.separator is either / or \ that is used t...
About Python's built in sort() method
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Java 8 functional interface with no arguments and no return value
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If I understand correctly you want a functional interface with a method void m(). In which case you can simply use a Runnable.
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Postgres - FATAL: database files are incompatible with server
...services stop postgresql
$ brew services start postgresql
Otherwise, consider this brew command to migrate existing data: brew postgresql-upgrade-database. Check out the source code.
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Invert “if” statement to reduce nesting
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A return in the middle of the method is not necessarily bad. It might be better to return immediately if it makes the intent of the code clearer. For example:
double getPayAmount() {
double result;
if (_isDead) result = deadAmount();...
Is it possible to select the last n items with nth-child?
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AngularJS : What is a factory?
...ll pretty much the same. The major differences are their complexities. Providers are configurable at runtime, factories are a little more robust, and services are the simplest form.
Check out this question AngularJS: Service vs provider vs factory
Also this gist may be helpful in understanding the...
Should the .gradle folder be added to version control?
...d anyway
It's basically a temp directory that Gradle is dropping in the middle of your source code (why Gradle thinks that's an appropriate thing to do is a different question).
You can tell the "cache directory" nature of the directory by the name of the switch that lets you change where it goes...
String to LocalDate
...e that this answer refers to Joda, not Java SE.
– DavidS
Nov 22 '19 at 0:30
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Ignore modified (but not committed) files in git?
...ited Feb 27 '12 at 14:49
IcanDivideBy0
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answered Apr 17 '09 at 16:22
cs...