JavaExperiment.java

import java.util.Arrays;
import java.util.Date;
import java.util.stream.*;
import java.util.*;
class Main {

    public static void main(String[] args) {
       int v[] = {1,2,3,4,5,6,7,8,9,10};

       Arrays.stream(v)
            .filter(p -> p % 3 == 0)
            .forEach(action -> System.out.println(action));

        System.out.println(Runtime.class.getPackage().getImplementationVersion());


        Data[] data = Stream.generate(() -> new Data()).limit(4).toArray(Data[]::new);

        Arrays.stream(data)
                .forEach(a -> System.out.println(a.date));
       
    }

}

class Data {
   int date;
   String countiesId; 

   Data() {
       date = new Random().ints(2000, (3000 + 1)).findFirst().getAsInt();
       countiesId = "1, 2, 3";
   }
}