I am moving everything to Ubuntu and started with 16-LTS but could not get Veracrypt to work with it so have had to go back to 14-LTS. All good though it's EOL is 2019.
I tried installing Lazarus using
sudo apt-get install lazarus
But, it installed version 1.0 of Lazarus.
I did some more searching and found this link
http://www.lazarus-ide.org/index.php?page=downloadsWhich leads to the three files to download. I saved them to my Downloads folder.
fpc_3.0.0-151205_amd64.deb
fpc-src_3.0.0-151205_amd64.deb
lazarus_1.6-0_amd64.deb
But now I am lost as to what to do next. I saw a comment here that showed to install those three files in that order with.
sudo apt-get install ./(filename).deb
But do not understand the "./" before the filename. Do I need to create a Lazarus Folder first and copy the files to that or just issue the above install command from the Downloads Folder?
I am a real newbie to Linux but am finally sick enough of windows to make this work.

Could someone please give me a step-by-step or a link to something like that to get the latest Lazarus and FPC installed.
I would be very grateful.
Thanks