Javafx animation help,

My goal is simple, I need to create an animation that moves left to right on a 800 pixel long pane on javafx. I am trying to make the figure look somewhat like this and need him to move from left to right across screen.

I have created 5 circles, three lines and the rectangle. I am unsure exactly how to implement them on here and make it work properly. Appreciate anyone who will take the time to look at this. I need this done in javafx

Thank you