Eclipse

July 16, 2010

I’m sure that you have heard of Eclise.  If not then all you need to know is that it is a very popular (and for a good reason) IDE mainly for Java.  However, it does also have C/C++ support, but it is mostly used with Java.

As you know, I’m not big on programming in Java.  But I recently purchased a Nexus One phone, and the IEEE SECon got me a little interested in Android application development.  I don’t plan for anything I make to be widely distributed, but rather just for personal use.  In any case, I would still need a place to create my programs.  Sure this can be done with a normal text editor and the command line but why bother with that when Eclipse and the Android SDK make it so simple?

I’m going to talk about getting and installing Eclipse onto you system (which I will assume to be Ubuntu).  Sure you could just run sudo apt-get install eclipse but this way assumes that you are using the OpenJDK version of Java and not Sun’s. So if you are using SunJava, which it seems most people do, then this how-to is for you.

First head over to the Eclipse site and download the IDE. To find the site just use Google and then do some reading and clicking, so there is no need for me to post a link. If you can’t get past this step then you probably shouldn’t be thinking about using Eclipse.

Next we will open the package you have just downloaded and then move it to the /opt directory. To do this just run the following sequence of commands:

tar xzf <filename>
sudo mv eclipse /opt/eclipse
cd /opt
sudo chown -R root:root eclipse
sudo chmod -R +r eclipse
sudo chmod +x `sudo find eclipse -type d`

The chown command changes the owner of a file/directory, if you have been reading this blog then you should be able to figure out what the other commands do.

Next we will add eclipse executable to your path.

sudo touch /usr/bin/eclipse
sudo chmod 755 /usr/bin/eclipse
sudoedit /usr/bin/eclipse

then add this to the file

#!/bin/sh
#export MOZILLA_FIVE_HOME="/usr/lib/mozilla/"
export ECLIPSE_HOME="/opt/eclipse"

$ECLIPSE_HOME/eclipse $*

I’m not all to sure exactly what the touch command does but you can look that up yourself (either online or with man).

Finally, the “most important” part; creating a GNOME-menu icon. This is something that would normally be done when you use the apt-get method.


cd /usr/share/applications
sudo nano eclipse.desktop

And enter the following into the created file;

[Desktop Entry]
Encoding=UTF-8
Name=Eclipse
Comment=Eclipse IDE
Exec=eclipse
Icon=/opt/eclipse/icon.xpm
Terminal=false
Type=Application
Categories=GNOME;Application;Development;
StartupNotify=true

All the stuff entered into the file makes perfect sense, so if you ever wanted to make a menu item for any other program you now know how.

All of these steps can be found at http://flurdy.com/docs/eclipse/install.html.

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