# Restarting at the beginning of an array

• October 28th, 2010, 05:19 PM
bonbon242
Restarting at the beginning of an array
Hi! I'm supposed to create a simple game that gains you points as the dice rolls and moves through the array. Basically, you enter an array. The dice is rolled, you move x amount of steps through the array. If you land on a 0, you lose. I'm having trouble figuring out how to restart at the beginning of the array once it moves through.

Here's what I have:

Code Java:

```class A3Q2 { public static void main (String[] args) { int [] a; int dice; char x = 'y'; int position = 0; int points = 0;   System.out.println("Please enter an array."); a = ITI1120.readIntLine( );   while (x == 'y') { dice = (int)(Math.random() * 5 + 1); System.out.println("The number of steps taken was " + dice + "."); position = position + dice;   while (position > a.length) { position = position - a.length; }   if (a[position] != 0) { points = points + a[position]; System.out.println("You move in position " + position + " and you gain " + a[position] + " point(s). Total points: " + points); System.out.println("Do you want to move again? (y/n)"); x = ITI1120.readChar(); } else { System.out.println("You move in position " + position + " and you gain 0 points."); System.out.println("Sorry, you lost."); x = 'n'; } } } }```

My attempt at this is the second loop in the code, which I thought would work, but it doesn't... help please!
• October 29th, 2010, 05:49 PM
lucasantos
Re: Restarting at the beginning of an array
Hi bonbon242,
I don't know if I understand your problem, but I think that if position is 4 and a.length()=3, you want return at the first element of your array.
For me, if you use mod function, you do it...
Try
while (position >=a.length){
position = (position % a.length);
}

in the place of your while loop.
Tell me something!
Bye!
• October 31st, 2010, 10:58 AM
bonbon242
Re: Restarting at the beginning of an array
Oh! Thanks so much that's exactly what I was looking for :)