I am getting an unknown error during task verification what could be the reason.
package com.codegym.task.task16.task1622;
/*
Consecutive threads
*/
public class Solution {
public volatile static int COUNT = 4;
public static void main(String[] args) {
for (int i = 0; i < COUNT; i++) {
try {
new SleepingThread().join();
Thread current = Thread.currentThread();
current.interrupt();
} catch (InterruptedException e) {
System.out.println("Thread interrupted");
}
}
}
public static class SleepingThread extends Thread {
private static volatile int threadCount = 0;
private volatile int countdownIndex = COUNT;
public SleepingThread() {
super(String.valueOf(++threadCount));
start();
}
public void run() {
while (!isInterrupted()) {
System.out.println(this);
if (--countdownIndex == 0) return;
//write your code here
try {
Thread.sleep(10);
}
catch (InterruptedException e){ }
}
}
public String toString() {
return "#" + getName() + ": " + countdownIndex;
}
}
}