как решить это ?
package com.javarush.task.task16.task1613;
/*
Big Ben clock
*/
public class Solution {
public static volatile boolean isStopped = false;
public static void main(String[] args) throws InterruptedException {
Clock clock = new Clock("Лондон", 23, 59, 57);
Thread.sleep(4000);
isStopped = true;
Thread.sleep(1000);
}
public static class Clock extends Thread {
private String cityName;
private int hours;
private int minutes;
private int seconds;
public Clock(String cityName, int hours, int minutes, int seconds) {
this.cityName = cityName;
this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
start();
}
public void run() {
try {
while (!isStopped) {
printTime();
}
} catch (InterruptedException e) {
}
}
private void printTime() throws InterruptedException {
seconds++;
if (seconds == 60) {
seconds = 0;
minutes++;
}
else if (minutes == 59) {
seconds = 0;
minutes = 0;
hours++;
}
else if (hours == 23) {
seconds = 0;
minutes = 0;
hours = 0;
}
if (hours == 0 && minutes == 0 && seconds == 0) {
System.out.println(String.format("В г. %s сейчас полночь!", cityName));
}
else {
System.out.println(String.format("В г. %s сейчас %d:%d:%d!", cityName, hours, minutes, seconds));
}
Thread.sleep(1000);
}
}
}