How can I install java on mojave 10.14.2 ?

According to the JGRASP website, Java 6 doesn't work well in High Sierra and they suggest at least Java 8 from Oracle. I would assume the same for Mojave.

If I remember correctly, you can tell JGRASP what java home to use, so you may just have to point it to the correct home folder.

Are you installing the JDK from Oracle's website or the JRE from Java.com. You need the JDK.

If you are installing a JDK from Oracle.com, try the Apple Java 6: Download Java for OS X 2017-001

To stay on-topic, Trying to get OpenJDK 11.0.2 to install on 10.14.2. Here's the reason. I'd like to run Octave on my MAC running 10.14.2 and Octave requires OpenJDK 11.0.2+9.

I'm NOT experienced with doing OpenSource updates on my MAC system, but, would very much like to learn. Can someone, outline for a novice user, the How-To's to get a OpenJDK 11.0.2+9 environment on Mojave?

Java 6 works for me with Mojave

To stay on-topic, Trying to get OpenJDK 11.0.2 to install on 10.14.2. Here's the reason. I'd like to run Octave on my MAC running 10.14.2 and Octave requires OpenJDK 11.0.2+9.

I'm NOT experienced with doing OpenSource updates on my MAC system, but, would very much like to learn. Can someone, outline for a novice user, the How-To's to get a OpenJDK 11.0.2+9 environment on Mojave?

Hope this helps... it worked for me.

cd ~/Downloads

tar xf openjdk-11.0.2_osx-x64_bin.tar.gz

sudo mv jdk-11.0.2.jdk /Library/Java/JavaVertualMachines/

java -version

java -version

java -version

OpenJDK version "11.0.2" 2019-01-15

OpenJDK Runtime Environment 18.9 (build 11.0.2+9)

OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode)

java -version

java 11.0.2