diff --git a/src/org/ntlab/pushPullRefactoring/Measurement.java b/src/org/ntlab/pushPullRefactoring/Measurement.java
new file mode 100644
index 0000000..93e4555
--- /dev/null
+++ b/src/org/ntlab/pushPullRefactoring/Measurement.java
@@ -0,0 +1,16 @@
+package org.ntlab.pushPullRefactoring;
+
+public class Measurement {
+	static long start;
+	static long end;
+	public static void start() {
+		start = System.nanoTime();
+	}
+	public static void endTime() {
+		end = System.nanoTime();
+		long t = end - start;
+		System.out.println("time : " + t );
+	}
+	
+	
+}