Ругается на строчку while (isInterrupted()!)
package com.javarush.task.task16.task1616;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Считаем секунды
*/
public class Solution {
public static void main(String[] args) throws IOException {
InputStreamReader in = new InputStreamReader(System.in);
BufferedReader reader = new BufferedReader(in);
//create and run thread
Stopwatch stopwatch = new Stopwatch();
stopwatch.start();
//read a string
reader.readLine();
stopwatch.interrupt();
//close streams
reader.close();
in.close();
}
public static class Stopwatch extends Thread {
private int seconds;
public void run() {
try
{
while (isInterrupted()!)
{
Thread.sleep(1_000);
seconds++;
}
}
catch (InterruptedException e) {
System.out.println(seconds);
}
}
}
}