Программа работает коректно
package com.javarush.task.task13.task1326;
/*
Сортировка четных чисел из файла
*/
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
FileInputStream file = new FileInputStream(fileName);
Scanner scan= new Scanner(file);
ArrayList<Integer> arr = new ArrayList<>();
while (scan.hasNextLine()) {
arr.add(scan.nextInt());
}
file.close();
Collections.sort(arr);
ArrayList<Integer> newArr = new ArrayList<>();
for (Integer x:arr){
if ((x%2)==0) newArr.add(x);
}
System.out.println(newArr);
}
}