First commit

1 files changed, 23 insertions, 0 deletions

diff --git a/tools/Timer.java b/tools/Timer.java
new file mode 100644
index 0000000..08d8829
--- /dev/null
+++ b/tools/Timer.java
@@ -0,0 +1,23 @@
+package mahjong.tools;
+
+/**
+ * Created by joe on 12/2/14.
+ */
+public class Timer {
+    long st,ed;
+
+    public void tick()
+    {
+        st=System.currentTimeMillis();
+    }
+
+    public void tock()
+    {
+        ed=System.currentTimeMillis();
+    }
+
+    public long elapse()
+    {
+        return ed-st;
+    }
+}