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How to use Comparator in Java to sort
...ss as a plural of something, it suggests it is an abstraction of more than one thing.
Anyway, here's a demo of how to use a Comparator<T>:
public class ComparatorDemo {
public static void main(String[] args) {
List<Person> people = Arrays.asList(
new Pers...
Import Maven dependencies in IntelliJ IDEA
...ntelliJ) and remove all *.iml files and all .idea folders (there should be one per module)
Run mvn clean install from the command line
Re-import the project into IntelliJ and pay attention when it asks you to enable auto-import
IntelliJ 2016 Update:
The Import Maven Projects automatically setting...
How can I apply a function to every row/column of a matrix in MATLAB?
...ou are applying to take advantage of this.
If that's not a viable option, one way to do it is to collect the rows or columns into cells using mat2cell or num2cell, then use cellfun to operate on the resulting cell array.
As an example, let's say you want to sum the columns of a matrix M. You can d...
Java 8 stream reverse order
...end to leak the Estreams name (I'm going to remove it from the post). It's one of our company's internal utility classes, which we use to supplement java.util.stream.Stream's static methods.
– Brandon
Jan 6 '16 at 20:54
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Logback to log different messages to two files
...ts) I want to have two logger instances which each log to a separate file; one for analytics and one for all purpose logging. Does anyone know if this is possible with Logback, or any other logger for that matter?
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Why would a static nested interface be used in Java?
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The question has been answered, but one good reason to use a nested interface is if its function is directly related to the class it is in. A good example of this is a Listener. If you had a class Foo and you wanted other classes to be able to listen for events...
std::string to char*
...ard I also explain some side effects of the use of this function, of which one is that you may not edit the string returned by c_str(). You mistakenly see my short examples as real problem-solving code, which it's not.
– orlp
Sep 8 '11 at 20:19
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Values of disabled inputs will not be submitted
...value be submitted with the form.
<INPUT disabled name="fred" value="stone">
Note. The only way to modify dynamically the value of the disabled
attribute is through a script.
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Why does this Java code compile?
...le name of any static variable declared in or inherited by the class, even one whose declaration occurs textually later.
Use of instance variables whose declarations appear textually after the use is sometimes restricted, even though these instance variables are in scope. See §8.3.2.3 for the prec...
Spring Boot - inject map from application.yml
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Nice, thanks Andy, worked like a charm! One more thing - when setting locations (to get the properties from another yml file instead of the default application.yml) on @ConfigurationProperties, it worked, except it did not result in placeholders being replaced. E.g...