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:: (double colon) operator in Java 8
...ia of: take no argument and return double can be used.
Another example:
Set<String> set = new HashSet<>();
set.addAll(Arrays.asList("leo","bale","hanks"));
Predicate<String> pred = set::contains;
boolean exists = pred.test("leo");
In case of parameterized types:
class Param&l...
How to PUT a json object with an array using curl
...ta inserted before the string you want to send in the PUT, and you want to set the Content-Type and not Accept.
curl -H 'Content-Type: application/json' -X PUT -d '[JSON]' http://example.com/service
Using the exact JSON data from the question, the full command line would become:
curl -H 'Content...
Useful example of a shutdown hook in Java?
...
You could do the following:
Let the shutdown hook set some AtomicBoolean (or volatile boolean) "keepRunning" to false
(Optionally, .interrupt the working threads if they wait for data in some blocking call)
Wait for the working threads (executing writeBatch in your case) to ...
sbt-assembly: deduplication found error
..."
lazy val app = Project("approxstrmatch", file("approxstrmatch"),
settings = buildSettings ++ assemblySettings ++ Seq(
mergeStrategy in assembly <<= (mergeStrategy in assembly) { (old) =>
{
case PathList("javax", "servlet", xs @ _*) => MergeStrategy.first...
Difference between := and = operators in Go
What is the difference between the = and := operators, and what are the use cases for them? They both seem to be for an assignment?
...
Do I encode ampersands in ?
... editor after snippets, if snippets enabled
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Kiosk mode in Android
...ured device owner app, through the
android.app.admin.DevicePolicyManager.setLockTaskComponents() method.
To set up a device owner, follow these steps:
Attach a device running an Android userdebug build to your development
machine.
Install your device owner app.
Create a device...
Overriding a Rails default_scope
...o do. For example, when you have a Product model that has a inactive flag, setting a default_scope { where inactive: false } is the best thing to do, since 99% or cases you will not want to display a inactive product. Then you just call unscoped on the remaining 1% cases, which is probably a Admin p...
How to elegantly ignore some return values of a MATLAB function?
Is it possible to get the 'nth' return value from a function without having to create dummy variables for all n-1 return values before it?
...
Add regression line equation and R^2 on graph
...
Problem with this solution seems to be, that if the dataset is bigger (mine was 370000 observations) the function seems to fail. I would recommend the solution from @kdauria which does the same, but much much faster.
– Benjamin
Sep 3 '15 at 1...