18.04javajavafxjdk
I have Java 8 and Ubuntu 18.04. I'm using NetBeans and when tried to make some program, it couldn't be done because JavaFX is missing.
I installed Java JDK with NetBeans from Oracle's site and thought everything is included but obviously I didn't check it well.
What should I do, what should I install? I'm not so good at this and don't know if problem is with Ubuntu or Java. 🙁
First read the whole answer. The first part shows you your errors and the second part shows you that alien is not necessary.
Use -d to create a DEB file
alien -d packagename.rpm
or
alien packagename.rpm
from man alien
-d, --to-deb
Make debian packages. This is the default.
-g, --generate
Generate a temporary directory suitable for building a package from,
but do not actually create the package. This is useful if you want to
move files around in the package before building it. The package can be
built from this temporary directory by running "debian/rules binary",
if you were creating a Debian package, or by running "rpmbuild -bb
<packagename>.spec" if you were creating a Red Hat package.
To install Oracle Java you don't need alien and a RPM file. Simply use the following commands.
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
JDK 8 is required for installing and running both NetBeans IDE 8.2 and Apache NetBeans 9.0.
The Eclipse snap package from the default Ubuntu repositories is perfect for Java programming because it is bundled with a Java development environment. To install it open the terminal and type:
sudo snap install eclipse --classic
This command will install the latest Photon Release 4.8 version of Eclipse IDE for Java Developers. Eclipse Photon JDT supports Java 10. Eclipse changed its codename policy so that Eclipse releases from September 2018 and onward are named after the year and month of the release date, for example Eclipse 2020-06. This naming scheme also applies to the eclipse snap package.
Select Java version from Installed JREs in Eclipse -> Window -> Preferences
To go through the built-in tutorials in Eclipse Photon select Help -> Welcome -> Tutorials.
Best Answer
In the Ubuntu 16.04 and later default repositories JavaFX is packaged as a separate package named openjfx. To install it in Ubuntu 18.04, open the terminal and type:
Check that JDK 8 is selected as the default Java version in Netbeans -> Tools -> Options -> Java -> Nashorn tab -> click the Manage Platforms button -> click the Add Platform button -> click the radio button marked Java Standard Edition -> click the Next button -> browse to
/usr/lib/jvm/java-8-openjdk-amd64and select it as the default Java version.Optionally you can install openjdk-11-jdk instead of or alongside openjdk-8-jdk. openjfx works with both openjdk-8-jdk and openjdk-11-jdk in Netbeans in Ubuntu 18.04. I am using Netbeans
8.210.0 in Ubuntu 18.04.