Simple thread execution

import java.util.Random;

public class ThreadingThings implements Runnable{
	
	int myID;
	Random gen;
	
	public ThreadingThings(int anID) {
		myID = anID;
		gen = new Random();
	}
	
	
	public void run() {
		System.out.println("Running thread " + myID);
		
		int count = 0;
		while(true) {
			System.out.println(myID +": At " + count++);
			try {
				Thread.sleep(Math.abs(gen.nextInt())%3 * 1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
	
	public static void main(String[] args) {
		Thread t1 = new Thread(new ThreadingThings(1));
		Thread t2 = new Thread(new ThreadingThings(2));
		t1.start();
		t2.start();
	}
}