Count Thread - revised
 
 Count Thread - revised
    public void run() {
        Select sel = new Select();
        sel.add(east_);
        sel.add(west_);
        while(true) {
           for(int i=0;i<15;i++) DisplayThread.rotate();
           switch (sel.choose()) {
            case 1:
                east_.in();
                break;
            case 2:
                west_.in();
                break;
            }
            count_.inc();
        }
    }
 Demo