I'm trying to run bluej. I downloaded BlueJ-linux-400.deb from bluej.org and installed it. When I click on the bluej icon, nothing happens.
help please.
edit:It turns out JDK wasn't installed properly, despite what it says on the bluej site - that it will be installed automatically.
31 Answer
It says on the bluej.org website Ubuntu/Debian Requires OpenJDK or Oracle JDK (8u60 minimum, 8u121 best). This package is called openjdk-8-jdk in the official Ubuntu repositories and its code is 8u121-b13-0ubuntu1. Did you install openjdk-8-jdk too?
To install openjdk-8-jdk open the terminal and type:
sudo apt-get install openjdk-8-jdk