Thread: NoSuchElementException(), simple program not behaving right with Scanner class.

So I am new to reading from files with Java and are trying to get this loop to keep reading from a file that the program has written to but it seems that every time I run the script the terminal seems to wait for me to input a value instead. And when I do just to see how it would behave I get a NoSuchElementException(). I'm not really sure what is happening but I know what that error means. It doesn't make sense to me why it is acting like that. It's been really driving me nuts.

import java.io.IOException;
import java.io.PrintWriter;
import java.io.File;
import java.util.Scanner;
import java.util.Random;
public class BottleCapPrize
{
    public static void main (String[] args) throws IOException
    {
        PrintWriter outFile = new PrintWriter(new File("BottleOpener.txt"));
        Scanner in = new Scanner(System.in);
        Scanner inFile = new Scanner(new File("BottleOpener.txt"));
        Random rand = new Random();
        int trials;
        int winCap = (int)(Math.random()*5)+1;
        int lenCaps = 0;
        int totalCaps = 0;
        double avg;
 
        System.out.print("Enter number of trials: ");
        trials = in.nextInt();
 
        for (int counter = 1; counter <= trials; counter++){
            while (rand.nextInt(5)+1 != winCap){
                lenCaps++;
            }
            outFile.println(lenCaps);
            lenCaps = 0;
        }
        outFile.close ();
 
        while (in.hasNext()){
            totalCaps += inFile.nextInt();       //<- I GET THE ERROR HERE
        }
        System.out.println("AVG: ~" + (avg = (double)totalCaps/trials));
    }
}