diff --git a/Assignment10/bin/RecursiveExercise.class b/Assignment10/bin/RecursiveExercise.class
index 4731608..054c6ce 100644
Binary files a/Assignment10/bin/RecursiveExercise.class and b/Assignment10/bin/RecursiveExercise.class differ
diff --git a/Assignment10/bin/RecursiveExerciseNoExtMethod.class b/Assignment10/bin/RecursiveExerciseSandwich.class
similarity index 91%
rename from Assignment10/bin/RecursiveExerciseNoExtMethod.class
rename to Assignment10/bin/RecursiveExerciseSandwich.class
index cb308ef..9a9e540 100644
Binary files a/Assignment10/bin/RecursiveExerciseNoExtMethod.class and b/Assignment10/bin/RecursiveExerciseSandwich.class differ
diff --git a/Assignment10/src/RecursiveExercise.java b/Assignment10/src/RecursiveExercise.java
index 90d1e91..3980031 100644
--- a/Assignment10/src/RecursiveExercise.java
+++ b/Assignment10/src/RecursiveExercise.java
@@ -25,6 +25,7 @@ public class RecursiveExercise {
 	}
 
 	// Remove the last element
+	
 	public static int[] removeLast(int[] ia1, int[] ia2, int i) {
 		ia2[i] = ia1[i];
 		if (i == ia2.length - 1)
diff --git a/Assignment10/src/RecursiveExerciseNoExtMethod.java b/Assignment10/src/RecursiveExerciseSandwich.java
similarity index 99%
rename from Assignment10/src/RecursiveExerciseNoExtMethod.java
rename to Assignment10/src/RecursiveExerciseSandwich.java
index ef4ee91..0ae8a6f 100644
--- a/Assignment10/src/RecursiveExerciseNoExtMethod.java
+++ b/Assignment10/src/RecursiveExerciseSandwich.java
@@ -1,6 +1,6 @@
 import java.util.Arrays;
 
-public class RecursiveExerciseNoExtMethod {
+public class RecursiveExerciseSandwich {
 
 	// return an array that has all data of ht and n,
 	// just like concatenating ht and n.