Illegal argument exception: n must be positive

Question

main class:

public class ECONAPP2 {
static Scanner input= new Scanner(System.in);
static int score = 0;
static ArrayList used         


        

Answer 1

n represents the parameter of the Random#nextInt(int n) method. The parameter must be a positive integer. In your example, the size of the array could be 0, thus resulting in the exception.