I have installed Ubuntu 14.04, I have installed Eclipse using Ubuntu Software Center. But Eclipse is not opening, when I click it is not opening or showing any error message it is very silent. Output for java -version: java version "1.7.0_55" Java(TM) SE Runtime Environment (build 1.7.0_55-b13) Java HotSpot(TM) Server VM (build 24.55-b03, mixed mode) uname -a: Linux Lenovo-IdeaPad-Z510 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14 UTC 2014 i686 i686 i686 GNU/Linux When I give Eclipse in terminal I am getting The program 'eclipse' is currently not installed. You can install it by typing: sudo apt-get install eclipse-platform And when I give sudo apt-get install eclipse-platform Reading package lists... Done Building dependency tree Reading state information... Done eclipse-platform is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.