public class Counter extends Thread {
    String name;
    public Counter(String name) {
        this.name = name;
    }
    public void run() {
        for (int i=1; i<=1000000; i++) {
            System.out.printf("%s: %d\n", name, i);
        }
    }
    public static void main(String[] args) {
        Counter c1 = new Counter("Fred");
        Counter c2 = new Counter("George");
        c1.start();
        c2.start();
    }
}