Creating random numbers with no duplicates

Question

In this case, the MAX is only 5, so I could check the duplicates one by one, but how could I do this in a simpler way? For example, what if the MAX has a value of 20? Thanks

Answer 1

I created a snippet that generates no duplicate random integer. the advantage of this snippet is that you can assign the list of an array to it and generate the random item, too.

No duplication random generator class