I did'nt understand which method should use in Solution class for waiting until the thread ends. Should I use join() method or any other method?
package com.codegym.task.task17.task1722;
/*
Let's count
*/
public class Solution {
public static void main(String[] args) throws InterruptedException {
Counter counter1 = new Counter();
Counter counter2 = new Counter();
Counter counter3 = new Counter();
Counter counter4 = new Counter();
counter1.start();
counter2.start();
counter3.start();
counter4.start();
for (int i = 1; i <= 100; i++) {
if (values[i] != 1) {
System.out.println("The values array contains elements not equal to 1");
break;
}
}
}
public static Integer count = 0;
public static int[] values = new int[105];
static {
for (int i = 0; i < 105; i++) {
values[i] = 0;
}
}
public static void incrementCount() {
count++;
}
public static int getCount() {
return count;
}
public static class Counter extends Thread {
@Override
public void run() {
do {
synchronized (Solution.class) {
incrementCount();
values[getCount()]++;
}
try {
Thread.sleep(1);
} catch (InterruptedException ignored) {
}
} while (getCount() < 100);
}
}
}