untabified

1 files changed, 17 insertions, 17 deletions

diff --git a/docs/teaching/exercises/answers/Answer4d.java b/docs/teaching/exercises/answers/Answer4d.java
index 10d90f6dd..f2127836a 100644
--- a/docs/teaching/exercises/answers/Answer4d.java
+++ b/docs/teaching/exercises/answers/Answer4d.java
@@ -1,13 +1,13 @@
 /* *******************************************************************
  * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
- * All rights reserved. 
- * This program and the accompanying materials are made available 
- * under the terms of the Common Public License v1.0 
- * which accompanies this distribution and is available at 
- * http://www.eclipse.org/legal/cpl-v10.html 
- *  
- * Contributors: 
- *     PARC     initial implementation 
+ * All rights reserved.
+ * This program and the accompanying materials are made available
+ * under the terms of the Common Public License v1.0
+ * which accompanies this distribution and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ *     PARC     initial implementation
  * ******************************************************************/
 
 package answers;
@@ -22,21 +22,21 @@ aspect Answer4d {
     private Group Point.enclosingGroup = null;
 
     before(Point p, Group g):
-	execution(void add(FigureElement)) && args(p) && target(g) {
-	p.enclosingGroup = g;
+        execution(void add(FigureElement)) && args(p) && target(g) {
+        p.enclosingGroup = g;
     }
 
     Rectangle around(Group g):
             execution(Rectangle Group.getBounds()) && this(g) {
-	if (g.cache == null) {
-	    g.cache = proceed(g);
-	}
-	return g.cache;
+        if (g.cache == null) {
+            g.cache = proceed(g);
+        }
+        return g.cache;
     }
 
     before(Point p): set(* Point.*) && target(p) {
-	if (p.enclosingGroup != null) {
-	    p.enclosingGroup.cache = null;
-	}
+        if (p.enclosingGroup != null) {
+            p.enclosingGroup.cache = null;
+        }
     }
 }