When I run the code, it seems that the output is proper.
package com.codegym.task.task07.task0713;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Playing Javarella
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<Integer> list = new ArrayList<Integer>();
int n = 20;
for(int i = 0; i < n; i++)
{
list.add(Integer.parseInt(reader.readLine()));
}
printList(list);
}
public static void printList(List<Integer> list) {
ArrayList<Integer> list3 = new ArrayList<Integer>();
ArrayList<Integer> list2 = new ArrayList<Integer>();
ArrayList<Integer> listAllOther = new ArrayList<Integer>();
int n = 20;
for(int i = 0; i < n; i++) {
if(list.get(i) % 2 == 0)
list2.add(list.get(i));
if(list.get(i) % 3 == 0)
list3.add(list.get(i));
if(list.get(i) % 3 != 0 && list.get(i) % 2 != 0)
listAllOther.add(list.get(i));
}
for(int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
}
for(int i = 0; i < list3.size(); i++) {
System.out.println(list3.get(i));
}
for(int i = 0; i < list2.size(); i++) {
System.out.println(list2.get(i));
}
for(int i = 0; i < listAllOther.size(); i++) {
System.out.println(listAllOther.get(i));
}
}
}