Question

I have the next code:

        t= (int)(Math.random()*8+1)+96; //ascii table
        if (t!= 96){
                choose[(int)(t-97)] = 1;
                r[0] = (char)t;}
    }

I try that in r[0], there would be only characters from b to h ('a' is not allow). When I run it, I see that sometimes r[0] contains 'a'. What can be the reason?

Answer 1

‘a’ is ASCII 97, and you’re not preventing that.

Why don’t you just pick a value from 98 (‘b’) to 104 (‘h’) in the first place, instead of allowing ‘a’ to be picked and then rejecting it?

(I’d also suggest using Random.nextInt instead of Math.random, and character literals instead of magic numbers, but…)