How to remove duplicate elements from array in Java?

Answer 1

This may help you....
https://stackoverflow.com/questions/17967114/how-to-efficiently-remove-duplicates-from-an-array-without-using-set

Answer 2

Or you just use Set.

Answer 3

https://code.sololearn.com/ckv639rB73G9/?ref=app
It should be removed duplicate letters just a sample