Java: Threads

//Thread Class
import java.util.Random;

public class Player implements Runnable{
    private String username;
    int time;
    Random r = new Random();

    public Player(String username){
        this.username = username;
        this.time = r.nextInt(999);
    }

    public void run(){
        try{
            System.out.printf("%s is sleeping for %d\n",username,time);
            Thread.sleep(time);
            System.out.printf("%s is done\n", username);
        }catch(Exception e){}
    }
}

//Main Class
class Java{
    public static void main(String args[]){
        Thread t1 = new Thread(new Player("404"));
        Thread t2 = new Thread(new Player("zachdyer"));
        Thread t3 = new Thread(new Player("Trayo"));
        t1.start();
        t2.start();
        t3.start();
    }
}