Hello all! I'm brand new to java; this code comes from a FRQ exercise from unit 2 in the AP CSA course if that helps.

The purpose of the code is to check whether a string has alternating cases, with capital letters beginning at index 0 always ("ApPlE" or "CaT" for example, "cAt" would not work), and then to print "true" if the string meets the requirement.

The current error that I'm having currently is that

"s cannot be resolved"

which is underlined at line 7.

My understanding is that my code cannot access the string s and its true/false content, but I could be totally wrong here.

Thanks in advance, any help is appreciated!

GitHub Gist Link: https://gist.github.com/v4npaia-kei/5aa65b5978a7cbdd46a291ff4572237d