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Delete directories recursively in Java
...One-liner solution (Java8) to delete all files and directories recursively including starting directory:
Files.walk(Paths.get("c:/dir_to_delete/"))
.map(Path::toFile)
.sorted((o1, o2) -> -o1.compareTo(o2))
.forEach(File::delete);
We use a compara...
Where can I find the Java SDK in Linux after installing it?
...in case there is a strange mix of JDK and JRE on the same machine. The JDK includes a compiler (javac) and a JRE does not. However if path is not correct, which will fail and you can try this: find /usr/java -wholename '*ava/jdk*' -prune as I note in a comment below.
– Steven t...
How to implement a property in an interface
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Interfaces can not contain any implementation (including default values). You need to switch to abstract class.
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Dump Mongo Collection into JSON format
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Mongo includes a mongoexport utility (see docs) which can dump a collection. This utility uses the native libmongoclient and is likely the fastest method.
mongoexport -d <database> -c <collection_name>
Also helpful:
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How to tell PowerShell to wait for each command to end before starting the next?
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Including the option -NoNewWindow gives me an error: Start-Process : This command cannot be executed due to the error: Access is denied.
The only way I could get it to work was to call:
Start-Process <path to exe> -Wa...
Delete sql rows where IDs do not have a match from another table
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@bunkerdive Then use three part object names that include the database name.
– Martin Smith
Apr 29 '16 at 9:32
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What is the most elegant way to remove a path from the $PATH variable in Bash?
...v ORS=: '/a/ {next} {print}'
## Works fine all removed
## Remove multiple including last two: (any directory with g)
$ echo ${a} | awk -v RS=: -v ORS=: '/g/ {next} {print}'
/a/b/c/d/e:/a/b/c/d/f:
## Works fine: Again!
Edit in response to security problem: (that is not relevant to the question)
e...
How do I create a Linked List Data Structure in Java? [closed]
...st to print the links contained in it. Enhancements to this implementation include making it a double-linked list, adding methods to insert and delete from the middle or end, and by adding get and sort methods as well.
Note: In the example, the Link object doesn't actually contain another Link obj...
How to manually deprecate members
... to be @available(*, deprecated, message = "no longer available ...") when including a message.
– Daniel Zhang
Nov 23 '16 at 6:35
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What format string do I use for milliseconds in date strings on iPhone?
I'm required to parse strings in a format that includes milliseconds. What format string do I use to get the right date value?
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