Threads created to run multiple iterations and track progress with AtomicInteger.

import java.util.concurrent.atomic.AtomicInteger;

class Task implements Runnable {

private static AtomicInteger count = new AtomicInteger();

@Override
public void run() {
for (int i = 0; i < 10; i++) {
System.out.println("Thread " + Thread.currentThread().getName() +
" is running iteration: " + count.incrementAndGet());
try {
Thread.sleep(100);
}
catch (InterruptedException e) {
System.out.println("Thread interrupted");
}
}
System.out.println("Thread " + Thread.currentThread().getName() +
" Finished");
}
}

public class ThreadExample {
public static void main(String[] args) {
Thread t1 = new Thread(new Task());
Thread t2 = new Thread(new Task());
t1.start();
t2.start();

try {
t1.join();
t2.join();
}
catch (InterruptedException e) {
System.out.println("Thread interrupted");
}

System.out.println("Finished with both threads");
}
}