11. The Party Reservation Filter Module

package Uprajnenie;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.function.Predicate;

public class ThePartyReservationFilterModule {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String[] names = scanner.nextLine().split("\\s+");
        List<String> filterList = new ArrayList<>();

        String filter = scanner.nextLine();
        while (!filter.equals("Print")) {
            String[] filterInfo = filter.split(";");
            String operation = filterInfo[0].trim();

            if (operation.equals("Add filter")) {
                filterList.add(filterInfo[1].trim() + ";" + filterInfo[2].trim());
            } else if (operation.equals("Remove filter")) {
                String toRemove = filterInfo[1].trim() + ";" + filterInfo[2].trim();
                filterList.remove(toRemove);
            }

            filter = scanner.nextLine();
        }

        for (String currentFilter : filterList) {
            String[] currentFilterInfo = currentFilter.split(";");
            String action = currentFilterInfo[0].trim();
            String parameter = currentFilterInfo[1].trim();

            if (action.equals("Starts with")) {
                names = filter(names, (name) -> !name.startsWith(parameter));
            } else if (action.equals("Ends with")) {
                names = filter(names, (name) -> !name.endsWith(parameter));
            } else if (action.equals("Length")) {
                names = filter(names, (name) -> name.length() != Integer.parseInt(parameter));
            } else if (action.equals("Contains")) {
                names = filter(names, (name) -> !name.contains(parameter));
            }
        }

        System.out.println(String.join(" ", names));
    }

    private static String[] filter(String[] names, Predicate<String> predicate) {
        List<String> filteredNames = new ArrayList<>();
        for (String name : names) {
            if (predicate.test(name)) {
                filteredNames.add(name);
            }
        }
        return filteredNames.toArray(new String[0]);
    }
}