After learning the order of the flats, the order of the sharps is exactly the mirrored image of that order.
The order of the flats are BEADGCF.
The order of the sharps are FCGDAEB.
Only two sharp scales have sharp in its name.
G Major has 1 sharp: F-sharp.
D Major has 2 sharps: F-sharp and C-sharp.
A Major has 3 sharps: F-sharp, C-sharp, and G-sharp.
E Major has 4 sharps: F-sharp, C-sharp, G-sharp, D-sharp.
B Major has 5 sharps: F-sharp, C-sharp, G-sharp, D-sharp, A-sharp.
F-sharp Major has 6 sharps: F-sharp, C-sharp, G-sharp, D-sharp, A-sharp, E-sharp.
C-sharp Major has 7 sharps: F-sharp, C-sharp, G-sharp, D-sharp, A-sharp, E-sharp, B-sharp.