diff --git a/java.md b/java.md
index 94eb200..c91ab63 100644
--- a/java.md
+++ b/java.md
@@ -7,4 +7,8 @@ sudo unzip -d /opt/gradle /tmp/gradle-7.5.1-bin.zip
 create sample application with gradle:
 https://docs.gradle.org/current/samples/sample_building_java_applications.html
 
-
+install jdk18 if not in apt
+https://askubuntu.com/questions/1421306/how-to-install-openjdk-18
+* wget the tar
+* unpack to /opt
+* set the bin folder in the JAVA_HOME ev