To install it manually by downloading the Eclipse files from http://www.eclipse.org/downloads/ . You will need to install JRE or JDK first before you can run Eclipse. You can do this by typing this in the terminal. sudo apt-get install sun-java6-jre Extract the Eclipse files to the /opt directory so that other users can have access to it. tar xzf eclipse-SDK-3.5.2-linux-gtk.tar.gz sudo mv eclipse /opt/eclipse Then create an eclipse executable in your path. sudo touch /usr/bin/eclipse sudo chmod 755 /usr/bin/eclipse sudo gedit /usr/bin/eclipse Then type in the followings and save. #!/bin/sh #export MOZILLA_FIVE_HOME=”/usr/lib/mozilla/” export ECLIPSE_HOME=”/opt/eclipse” $ECLIPSE_HOME/eclipse $* Then create a gnome menu item. sudo gedit /usr/share/applications/eclipse.desktop Enter the following and save. [Desktop Entry] Encoding=UTF-8 Name=Eclipse Comment=Eclipse IDE Exec=eclipse Icon=/opt/eclipse/icon.xpm Terminal=false Type=Application Categories=GNOME;A...