help me understand why the test is failing?

Question about the task

Resolved

why doesn't the test seem to recognize the fact that i am using a try resource block that will close the fileinputstream automatically? are we note supposed to use try resource blocks anymore?

1. Read a file name from the console.
2. Read a set of numbers from the file.
3. Display only the even numbers, sorted in ascending order.

Example input:
5 8 -2 11 3 -5 2 10

Example output:
-2 2 8 10

Requirements:

The program must read data from the console.
The program must create a FileInputStream using the line read from the console.
The program should display data on the screen.
The program should display all of the even numbers read from the file, sorted in ascending order.
The program must close the input stream used to read the file (FileInputStream).

package com.codegym.task.task13.task1326; import java.io.*; import java.util.*; /* Sorting even numbers from a file */ public class Solution { public static void main(String[] args) { Scanner scan = new Scanner(System.in); String filename = scan.nextLine(); scan.close(); File file = new File(filename); byte[] bytes = new byte[(int) file.length()]; try (FileInputStream fis = new FileInputStream(file)) { //noinspection ResultOfMethodCallIgnored fis.read(bytes); } catch (Exception e) { e.printStackTrace(); } String[] s = new String(bytes).split("\\s+"); List<Integer> list = new ArrayList<>(); for (String num : s) list.add(Integer.parseInt(num)); Collections.sort(list); list.stream().filter(f -> f % 2 == 0).forEach(System.out::println); } }

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Ian De Bie Full Stack Developer

29 August 2020, 04:01

i don't know how i solved it since i still used a try resource block, but this time the tests passed using this refactored code.

public class Solution {
    public static void main(String[] args) {
        List<Integer> list = new ArrayList<>();
        String line;
        try (BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
             BufferedReader stream = new BufferedReader(new InputStreamReader(new FileInputStream(read.readLine())))) {
            while ((line = stream.readLine()) != null) list.add(Integer.parseInt(line));
        } catch (IOException e) { e.printStackTrace(); }
        Collections.sort(list);
        list.stream().filter(f -> f % 2 == 0).forEach(System.out::println);
    }
}