O7. Append Arrays / Lists - Exercise

package ExerciseList;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class O7AppendArrays {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        List<String> input = Arrays.stream(scanner.nextLine()
                .split("\\|"))
                .collect(Collectors.toList());
        Collections.reverse(input);
        String print = input.toString()
                .replaceAll("[]\\[,]", "")
                .trim()
                .replaceAll("\\s+", " ");
        System.out.println(print);
    }
}