The Tutorial shows you How to Install and Getting-Started with the Latest Eclipse 2023-03 R IDE Java JEE on Linux DescentOs 3.0.2 Mate i386 Desktop.
There is the Possibility also to Install the Eclipse Platform via apt-get But the DescentOs 3 Depends from Ubuntu Precise apt Repositories that are still Back to Eclipse 3.8.
So at the Moment if you want Install the Latest Release of Eclipse 2023-03 R Build on Linux DescentOs 3 you will Need to Download and Install Eclipse 2023-03 R Release for Linux.
The contents give Focus only to the Essential Instructions and Commands so to make the Tut easier to understand ;)
Download Latest Eclipse 2023-03 R JEE:Eclipse 2023-03 R JEE Linux