Find the nearest number @ JetBrain Academy

Main.java

import java.util.*;
import java.util.stream.Collectors;

class DistNum {
    public Integer distance;
    public Integer num;

    public DistNum(Integer distance, Integer num) {
        this.distance = distance;
        this.num = num;
    }
}

public class Main {
    public static void main(String[] args) {
        // write your code here
        // scan in input
        var sc = new Scanner(System.in);
        var l = new ArrayList<Integer>();
        while (sc.hasNextInt()) {
            l.add(sc.nextInt());
        }
        var n = l.remove(l.size() - 1);

        // calculate distances
        var dnl = new ArrayList<DistNum>();
        for (var x : l) {
            var diff = Math.abs(x - n);
            var dn = new DistNum(diff, x);
            dnl.add(dn);
        }
        // sort distances
        dnl.sort(Comparator.comparing(dn -> dn.distance));
        // show closest numbers
        var minDistance = dnl.get(0).distance;
        var closestNums = dnl.stream()
                .filter(dn -> dn.distance.equals(minDistance))
                .map(dn -> dn.num)
                .sorted()
                .collect(Collectors.toCollection(ArrayList::new));
//        System.out.println(closestNums);
        for (var i = 0; i < closestNums.size(); i++) {
            System.out.print(closestNums.get(i)
                    + (i == closestNums.size() - 1 ? "\n" : " "));
        }
    }
}