Sort Even Numbers

package FunctionalProgramming5;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;

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

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        List<Integer> evenNumbers = new ArrayList<>();

        String text = reader.readLine();
        Function<String, int[]> parseInput = input -> {
            String[] tokens = input.split(", ");
            int[] result = new int[tokens.length];
            for (int i = 0; i < result.length; i++) {
                result[i] = Integer.parseInt(tokens[i]);
            }
            return result;
        };

        int[] numbers = parseInput.apply(text);

        Predicate<Integer> isEvenNumber = num -> num % 2 == 0;

        Function<int[], List<Integer>> fillWithEvenNumbers = integerArray -> {
            List<Integer> result = new ArrayList<>();
            for (int i = 0; i < integerArray.length; i++) {
                if (isEvenNumber.test(integerArray[i])) {
                    result.add(integerArray[i]);
                }
            }
            return result;
        };

        Consumer<List<Integer>> printList = listOfIntegers -> {
            StringBuilder sb = new StringBuilder();
            Iterator<Integer> iterator = listOfIntegers.iterator();
            while (iterator.hasNext()) {
                sb.append(iterator.next());
                if (iterator.hasNext()) {
                    sb.append(", ");
                }
            }

            System.out.println(sb);
        };

        evenNumbers = fillWithEvenNumbers.apply(numbers);
        printList.accept(evenNumbers);
        evenNumbers.sort((n1, n2) -> n1.compareTo(n2));
        printList.accept(evenNumbers);

        reader.close();

    }
}