Install Eclipse in Ubuntu

Downloaded Eclipse from website
http://www.eclipse.org/downloads/

 If your downloaded file is eclipse-cpp-juno-linux-gtk.tar.gz

tar -xvf eclipse-cpp-juno-linux-gtk.tar.gz
cd eclipse
chmod +x eclipse
cd ..
mv eclipse /opt
gedit /usr/share/applications/eclipse.desktop

Copy the following and save it.

[Desktop Entry]
Name=Eclipse
Type=Application
Exec=/opt/eclipse/eclipse
Terminal=false
Icon=/opt/eclipse/icon.xpm
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE
Name[en]=Eclipse

cd /usr/local/bin
ln -s /opt/eclipse/eclipse

Eclipse is ready