diff --git a/src/main/java/cit/PureATN/Note.java b/src/main/java/cit/PureATN/Note.java
index 51f80dc..a3cde08 100644
--- a/src/main/java/cit/PureATN/Note.java
+++ b/src/main/java/cit/PureATN/Note.java
@@ -2,7 +2,6 @@
 
 import java.awt.dnd.DropTarget;
 import java.awt.dnd.DropTargetDropEvent;
-
 import java.awt.event.InputEvent;
 import java.util.TooManyListenersException;
 
@@ -12,7 +11,6 @@
 import org.piccolo2d.PLayer;
 import org.piccolo2d.event.PBasicInputEventHandler;
 import org.piccolo2d.event.PInputEventFilter;
-import org.piccolo2d.event.PMouseWheelZoomEventHandler;
 import org.piccolo2d.extras.PFrame;
 import org.piccolo2d.util.PPaintContext;
 
diff --git a/src/main/java/cit/PureATN/ShortStroke.java b/src/main/java/cit/PureATN/ShortStroke.java
index 08f7555..1d314cd 100644
--- a/src/main/java/cit/PureATN/ShortStroke.java
+++ b/src/main/java/cit/PureATN/ShortStroke.java
@@ -20,7 +20,6 @@
 
 import cit.PureATN.MultiNote.MultiNote;
 
-
 /**
  * 生徒の筆記（1ストローク）モデル Zoom可能な画面に表示するためのクラス
  * @author miuramo
diff --git a/src/main/java/cit/PureATN/WheelEvent_on_Note.java b/src/main/java/cit/PureATN/WheelEvent_on_Note.java
index 68b9792..e6fc0a8 100644
--- a/src/main/java/cit/PureATN/WheelEvent_on_Note.java
+++ b/src/main/java/cit/PureATN/WheelEvent_on_Note.java
@@ -1,10 +1,10 @@
 package cit.PureATN;
 
+import java.awt.AWTException;
 import java.awt.Point;
 import java.awt.Robot;
-import java.awt.AWTException;
-
 import java.awt.geom.Point2D;
+
 import org.piccolo2d.PCamera;
 import org.piccolo2d.PCanvas;
 import org.piccolo2d.PLayer;