not really because you just need to be out of high school and need 2 year of collage to be in the nba
High School Diploma
you need a proper high school or colledge career
The NBA does not care what your GPA was in high school or college, only your skill level with the basketball.
There is one Nba player that did not graduate from high school
The NBA apparel shop!
All that are not in the NBA
No, look at Kobe and lebron. they went straight out of high school.