почему не проходит валидация?
package com.javarush.task.task16.task1626;
public class Solution {
public static int number = 5;
public static void main(String[] args) {
new Thread(new CountdownRunnable(), "Уменьшаем").start();
new Thread(new CountUpRunnable(), "Увеличиваем").start();
}
public static class CountUpRunnable implements Runnable{
private int countIndexUp = 1;
public void run() {
try {
while (true) {
System.out.println(toString());
countIndexUp += 1;
if (countIndexUp == 6) return;
Thread.sleep(500);
}
} catch (InterruptedException e) {
}
}
public String toString() {
return Thread.currentThread().getName() + ": " + countIndexUp;
}
}
public static class CountdownRunnable implements Runnable {
private int countIndexDown = Solution.number;
public void run() {
try {
while (true) {
System.out.println(toString());
countIndexDown -= 1;
if (countIndexDown == 0) return;
Thread.sleep(500);
}
} catch (InterruptedException e) {
}
}
public String toString() {
return Thread.currentThread().getName() + ": " + countIndexDown;
}
}
}