update

src/main/java/Snake/GameView.java

@@ -21,5 +21,15 @@ public class GameView extends JPanel
         this.gridSize = gridSize;
     }
 
+    @Override
+    protected void paintComponent(Graphics g) {
+        super.paintComponent(g);
 
+        for(var view : views)
+        {
+            view.draw(g);
+        }
+
+        Toolkit.getDefaultToolkit().sync();
+    }
 }