Random Int in java

Question

random.nextInt( max - min + 1 ) + min

max = 5
min = 1
picks a number(4,3,2,1)? (Bc max is exclusive?)
So why not: random.nextInt( max - min)

But what's the purpose of +1 and +min?

I found some threads about the topic, but I don't get it.

Answer 1

You must show the complete code to answer the question properly.
(max - min + 1) = 5 - 1 +1 = 5
So the number would be between 0 to 5 and 5 is exclusive. The "+min" is just adding one to the resultant and it's use is unknown.

Answer 2

Thank you!