Do I sum the amount from 1040 and 1040NR when filing Dual-Status Alien return?

Hello, I left the U.S. on 2019/7/29 as my J1 visa was due and 2019 is the 3rd calendar year of my J1 visa. I'm going to file a tax return as a Dual-Status Alien. I'll fill out the 1040NR (Dual-Status Return) for the taxable income/interests/dividends...etc after the date I left and 1040 (Dual-status statement) for the taxable income/interests/dividends...etc before the date. I will get a "refund" or "owe" from each of the form 1040 and 1040NR. Do I sum the amounts from both forms and get the "final amount" that I really owe or will be refunded? Can I use Sprintax and Turbotax to do each part of my return, or I have to file them by mail?

 

By the way, I have two more questions regarding Dual-Status aliens. 

I still had some income from the hospital of my own country from January to July 2019 while I was a resident alien. Do I include this income with the amount earned in the U.S. into the 1040 form? 

I had bank interests and dividends from outside of the U.S. in  2019, I have to e-file FBAR, is this correct?

 

Thank you very much!