Перенос.

src/Common/Utils/Stopwatch.java

@@ -0,0 +1,16 @@
+package Common.Utils;
+public class Stopwatch {
+    long st, en;
+    double res;
+    public void Start() {
+        st = System.nanoTime();
+    }
+    public void Stop() {
+        en = System.nanoTime();
+        res = en - st;
+    }
+    public String Print() {
+        //https://hr-vector.com/java/formatirovanie-chisel-strok
+        return String.format("%,3.2f", res * 0.000001) + " ms";
+    }
+}