1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index e8db877..43bc2b8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,7 @@
 calendar:
+	# Printing of the current Java version suggested by Mael Valais.
+	java -version
+	javac -version
 	javac src/*.java -d bin/
 
 clean: