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import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.collections.transformation.FilteredList;
public class FilteredListWithoutPredicate {
public static void main(String[] args) {
ObservableList<String> source = FXCollections.observableArrayList();
source.addAll("one", "two", "three");
System.out.println("source size: " + source.size());
System.out.println("without predicate: "
+ new FilteredList<>(source).size());
System.out.println("with predicate: "
+ new FilteredList<>(source, t -> true).size());
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