Should I add both "Form 1040, Line" and "Schedule B, Line 1" for reporting interest of foreign bank accounts?

Hello Sir or Madam,

When I report the interest of foreign bank accounts,

1. should I enter the value in "Interest" category and in "Amounts Attributable to Foreign Financial Accounts"?

2. It recommends me to enter "Schedule B, Line 1" for reporting the interest for form 8939. Do I need to also include "Form 1040, Line 2"? 

Thank you very much. 

Best regards,

Renee