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Sorting HashMap by values [duplicate]
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Assuming Java, you could sort hashmap just like this:
public LinkedHashMap<Integer, String> sortHashMapByValues(
HashMap<Integer, String> passedMap) {
List<Integer> mapKeys = new ArrayList<>(passedMap.keySet());
List<String> mapValues ...
Why does make think the target is up to date?
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Maybe you have a file/directory named test in the directory. If this directory exists, and has no dependencies that are more recent, then this target is not rebuild.
To force rebuild on these kind of not-file-related targets, y...
SQL selecting rows by most recent date
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You can use a GROUP BY to group items by type and id. Then you can use the MAX() Aggregate function to get the most recent service month. The below returns a result set with ChargeId, ChargeType, and MostRecentServiceMonth
SELECT
CHARGEID,
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Convert blob to base64
This is a snippet for the code that I want to do Blob to Base64 string:
9 Answers
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String is immutable. What exactly is the meaning? [duplicate]
I wrote the following code on immutable Strings.
19 Answers
19
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gitignore all files of extension in directory
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Never tried it, but git help ignore suggests that if you put a .gitignore with *.js in /public/static, it will do what you want.
Note: make sure to also check out Joeys' answer below: if you want to ignore files in a specific subdirectory, ...
How do I get the time difference between two DateTime objects using C#?
How do I get the time difference between two DateTime objects using C#?
9 Answers
9
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Simplest way to profile a PHP script
... is dated 2004, the extension is no longer maintained and has various compability issues (see comments).
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What is the runtime performance cost of a Docker container?
...st of a Docker container. I've found references to networking anecdotally being ~100µs slower .
3 Answers
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Scala @ operator
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It enables one to bind a matched pattern to a variable. Consider the following, for instance:
val o: Option[Int] = Some(2)
You can easily extract the content:
o match {
case Some(x) => println(x)
case None =>
}
But ...