To fix not working synaptics touchpad problem:
sudo gedit /etc/default/grub
change the line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to 
GRUB_CMDLINE_LINUX_DEFAULT="i8042.notimeout i8042.nomux

then
sudo update-grub
tben restart




http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux


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