slider and buttons are appearing properly, if super ugly and doing nothing

assignments/a3/src/main/java/Controls.java

@@ -9,7 +9,7 @@ import javax.swing.ImageIcon;
 public class Controls extends JPanel implements Observer
 {
   private Model model;
-  private starSlider rating;
+  private JSlider rating;
   private JButton grid;
   private JButton list;
 
@@ -42,7 +42,7 @@ public class Controls extends JPanel implements Observer
       }
     });
     
-    this.rating = new starSlider(0, 5, 0);
+    this.rating = new JSlider(0, 5, 0);
     rating.addChangeListener(new ChangeListener()
     {
       public void stateChanged(ChangeEvent e)