Ticks and Movement

public void run()
    {
        long lastTime = System.nanoTime(); //get nanoTime
        double nsPerTick = 1000000000d/60d; //calcuates how many ns in 1 tick

        int ticks = 0;
        int frames = 0;

        long lastTimer = System.currentTimeMillis();
        double delta = 0; //how many nano seconds have gone by

        init();

        while(running)
        {
            long now = System.nanoTime();
            delta +=(now - lastTime) / nsPerTick;
            lastTime = now;
            boolean shouldRender = true;
            while(delta >= 1)
            {
                ticks++;
                tick();
                delta-=1;
                shouldRender = true;
            }

            try {
                Thread.sleep(2);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            if(shouldRender)
            {
                frames++;
                render();
            }

            if(System.currentTimeMillis() - lastTimer >= 1000)
            {
                lastTimer += 1000;
                System.out.println(ticks + "ticks, " + frames + "frames");
                frames = 0;
                ticks = 0;
            }
        }
    }

    public void tick()
    {
        tickCount++;
        //TODO: Add some shitty movement code
        //TODO: Rendering stuff?
    }