import java.util.ArrayList;
import java.util.List;

class Ideone {
  public static void main(String[] args) {
    List<Integer> dates = new IntegerPrinter().anyPrint(7);
    System.out.println(dates.get(0));
    Integer x = dates.get(0);
  }
}

class IntegerPrinter {
  public <K> List<K> anyPrint(K lo) {
    List<K> mylist = new ArrayList<>();
    mylist.add((K) Float.valueOf(2.99f));
    return mylist;
  }
}