Javac on Ubuntu

Question

I'm on windows 10 and running the bash shell (ubuntu), by turning the Windows Subsystem for linux on. Anyways, I'm trying to run some Java programs through the command prompt. I have already set the PATH variables and I can successfully run the java and javac commands in the windows command prompt. However, when I run the javac or java command using Ubuntu shell it says those commands are not found? So it lists some options that I can enter and one of those is

sudo apt install openjdk-8-jdk-headless

But when I run this command it says:

E: Unable to locate package openjdk-8-jdk-headless

I don't get it. I already have Java-8 installed and the PATH variables set, it works fine for the windows command prompt but fails to work with ubuntu. What am I doing wrong?

Thanks.

Answer 1

Do you have to use the OpenJDK version? Try this

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

See this link and this issue