substring And length (Java String Methods)

bro u just saved my life
all love bro

Very good sir

Is there a way for the substring to appear in reverse? Like say I want to just get "java" and have it appear as "avaj"

can you include this in the java playlist

Thank you for keep it short to the point and somehow very detail, I struggle understanding the basic material

this was extremely informative and explained way better than my lecturer. thank you sir.

Explained better than my teacher

thank you sir