am trying to make a file that store values form a menu. giving the user diffrent choices to make

// how do i make it work??

import java.util.Scanner;
import java.io.File;

public class dvdButikk{

public static void main(String[] args)throws Exception {
File nyFil = new File("dvdarkiv.txt");
Scanner scanner = new Scanner(nyFil);

Scanner scan = new Scanner(System.in);
int tast = 0;

while (tast != 7){
  System.out.println("Meny for DVD administrasjon");
  System.out.println("1. Ny person");
  System.out.println("2. Kjop");
  System.out.println("3. Laan");
  System.out.println("4. Vis person");
  System.out.println("5. Vis oversikt");
  System.out.println("6. Retur");
  System.out.println("7. Avslutt");
  tast = Integer.parseInt(scan.nextLine());
}
}