在 ubuntu 18.04 上安装 DR java

Question

I will be attending computer science classes and we are asked to be using DrJava , but am using linux os and I don't know how to install DrJava on ubuntu. Please help me. I tried to download a jar file for DrJava and run below command

java-jar drjava-stable-20190813-220051 

But this is the response I get;

Command 'java' not found, but can be installed with:

 sudo apt install default-jre sudo apt install openjdk-11-jre-headless sudo apt install openjdk-8-jre-headless

Answer 1

Run

sudo apt install openjdk-8-jdk 

And try again.