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

You want to change the order you're calling methods in you main method. Try this:

public static void main(String[] args){
    arrayContents();
    app();
}

This way when you call app(), your ArrayList has items in it.