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I get Eclipse 3.8 in apt-get, and having a problem with .nb files with it here about How to Have Mathematica 10 Workbench in Ubuntu 16.04? I do not understand how this can possible that only 3.8 in apt-get, since 3.8 is already two years old.

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You can't. You need to download 4.5 from the website and run the installer. – chaskes May 3 '16 at 17:42
    
I'm sorry but that's just not how things work. If you need a newer version than is in the repositories, you need to find an alternate method to install. In this case, eclipse makes an installer that works great, so there's no problem. – chaskes May 3 '16 at 17:47
    
Please don't create a new question that's essentially the same as the one you just asked. You need to wait for an answer. But if 3.8 doesn't work for you, don't use it. Get 4.5 from the website and run the installer. – chaskes May 3 '16 at 17:53
    
If you solved your problem yourself, please answer your own question and accept it once the question was re-opened or – in the case of a duplicate – answer the linked question. Don't put the answer in your question or the comments! :-) – David Foerster Jun 18 '16 at 14:07
    
Right answer is this sudo mv eclipse /usr/local/ sudo chmod -R 755 /usr/local/eclipse sudo chown -R root:root /usr/local/eclipse sudo ln -s /usr/local/eclipse/eclipse /usr/local/bin/eclipse eclipse and config your path. See the history which David deleted. I completely disagree his decision. Current only answer adds a dependency risk. – Léo Léopold Hertz 준영 Jun 19 '16 at 10:36
up vote 6 down vote

You can't get it directly from the standard Ubuntu repository, but you can add this PPA that has Eclipse 4.5 through apt:

sudo apt-add-repository ppa:mmk2410/eclipse-ide-java

Ref: https://launchpad.net/~mmk2410/+archive/ubuntu/eclipse-ide-java

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I was having the same issue and I am not sure if it is added to the path or not but you can find it under /opt/eclipse-ide-java and there only run eclipse, if you want the icon you can do this; the guy who created that repo only focussed on downloading eclipse... (something that of course you could have done yourself) – Cams May 3 '16 at 23:02
    
another thing that I would recommend is to try the Eclipse Installer (link for the mirrors of Linux x64) it is brand new to me to so I am also giving it a try :) – Cams May 3 '16 at 23:02
    
This is not a good solution. Adding 3rd party thing not an option. The best answer in the body. – Léo Léopold Hertz 준영 Jun 18 '16 at 13:44
up vote 3 down vote

The best way is using umake Ubuntu Make is a project designed to enable quick and easy setup of common needs for developers on Ubuntu.

$ sudo add-apt-repository ppa:ubuntu-desktop/ubuntu-make
$ sudo apt update
$ sudo apt install ubuntu-make

$ umake ide eclipse-jee

And that's it

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up vote 0 down vote accepted

To use third party ppa's is always a risk and cannot be used in all environments. Do to get rid of apt-get's eclipse which is old

sudo apt-get purge eclipse*

Get and extract the official tarball in Eclipse homepage and do

sudo mv eclipse /usr/local/
sudo chmod -R 755 /usr/local/eclipse
sudo chown -R root:root /usr/local/eclipse
sudo ln -s /usr/local/eclipse/eclipse /usr/local/bin/eclipse
eclipse

Configure Java PATHs for Eclipse. So install JRE >=7 and Java PATHs correctly in your system for Workbench 3

> Configuring your Java Run-time Environment (JRE) or Wolfram Engine installation are still both necessary on Linux. Further, the version of JRE used should be at least version 1.7

The .nb problem is caused by false setting of Java path in your system/Mathematica.

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Other than commercial organisations where security is a key feature, what is the need of so much security for a layman? – rancho Mar 1 '17 at 23:29

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