--- a/data.sty	Sun Sep 30 12:01:14 2018 +0100
+++ b/data.sty	Sun Sep 30 23:38:38 2018 +0100
@@ -1,5 +1,6 @@
 % The data files, written on the first run.
 
+%% example a?{n} a{n}
 \begin{filecontents}{re-python.data}
 1 0.029
 5 0.029
@@ -21,6 +22,7 @@
 #29 58.886
 \end{filecontents}
 
+
 \begin{filecontents}{re-python2.data}
 1 0.033
 5 0.036
@@ -39,7 +41,7 @@
 28 26.69
 \end{filecontents}
 
-
+%% example a?{n} a{n}
 \begin{filecontents}{re-ruby.data}
 1 0.00006
 #2 0.00003
@@ -71,6 +73,7 @@
 28 34.79653
 \end{filecontents}
 
+% Java 8, example (a*)*b  
 \begin{filecontents}{re-java.data}
 5  0.00298
 10  0.00418
@@ -90,6 +93,30 @@
 28  29.81185
 \end{filecontents}
 
+% Java 9+, example (a*)*b
+\begin{filecontents}{re-java9.data}
+1000   0.01871
+3000   0.16727
+5000   0.44669
+7000   0.87708
+9000   1.46304
+11000  2.21094
+13000  3.08650
+15000  4.23359
+17000  4.97240
+19000  6.50150
+21000  8.43740
+23000  9.66842
+25000  10.93754
+27000  13.51069
+29000  14.73643
+31000  16.69299
+33000  19.04270
+35000  21.08329
+37000  23.75398
+39000  26.15787
+\end{filecontents}
+
 %% re1.scala: example a?{n} a{n}
 \begin{filecontents}{re1.data}
 1 0.00179