A major has 3 sharps, A minor has no sharps or flats.
A Major has 3 sharps, C#,F#, G#.
There are 4 sharps and 3 double-sharps.
A sharp key signature is one that contains sharps.
The Key of Ab does not have any sharps naturally written in it. It has four flats.
The key c sharp contains six sharps.... ( not 100% sure though)
C sharp major, or A sharp minor. The sharps are F, C, G, D, A, E and B.C# Major does
None, only flats. B flat in F major, B, E, A, and D flat in F minor.
There are six sharps in F sharp major.
One : F sharp!
There are four sharps in C sharp minor. These sharps are C# D# F# and G#. The harmonic minor also has B#. (which is C)
A sharp key signature is one that contains sharps.
That would be the key of A-sharp minor, the relative to C-sharp major, which contains seven sharps. The leading tone is G-double-sharp.
It contains one sharp: F.
The Key of Ab does not have any sharps naturally written in it. It has four flats.
Three sharps; F-sharp, C-sharp and G-sharp.
The key c sharp contains six sharps.... ( not 100% sure though)
The sharps indicate which notes are sharp. You have to learn how to recognize sharp keys, same as with flat keys.
There are several key signatures that contain sharps.
The key of G Major has one sharp: F#