clean code

package.bluej

@@ -5,12 +5,12 @@ dependency1.type=UsesDependency
 dependency2.from=InventoryTest
 dependency2.to=Inventory
 dependency2.type=UsesDependency
-editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=320
-editor.fx.0.y=50
+editor.fx.0.height=735
+editor.fx.0.width=907
+editor.fx.0.x=15
+editor.fx.0.y=23
 objectbench.height=164
-objectbench.width=776
+objectbench.width=461
 package.divider.horizontal=0.6
 package.divider.vertical=0.6845018450184502
 package.editor.height=364