how can I make this method work without changing the variables

import java.util.Scanner;

public class ParallelArrayMovies $\{$

public static final String DATAFILE$="../$data$/$movielist$.$txt$"$;

public static final int MAXMOVIES$=10000$;

public static void main$($String $[]$ args$)\{$

int choice; $//$ user's selection from the menu

String $[]$ titles$=$ new String$[$MAXMOVIES$]$;

String $[]$ genres$=$ new String$[$MAXMOVIES$]$;

int $[]$ years$=$ new int$[$MAXMOVIES$]$;

int numberOfEntries;

titles$[0]=("$Dr$.$No$")$;

genres$[0]=("$Rmomance$")$;

years$[0]=1962$;

titles$[1]=("$From Russia with Love"$)$;

genres$[1]=("$Action$")$;

years$[1]=1963$;

titles$[2]=("$Agent $353-$ Pasport to Hell"$)$;

genres$[2]=("$Horror$")$;

years$[2]=1964$;

numberOfEntries$=$ loadMovies$($titles$,$genres,years$)$;

numberOfEntries$++$;

System.out.println$("$Number of entries read from data file: $"+$numberOfEntries$)$;

do $\{$

choice$=$ getMenuChoice$()$;

if $($choice$==1)$

numberOfEntries$=$ enterMovie$($titles$,$genres,years,numberOfEntries$)$;

else if $($choice$==2)$

$//$DeleteaMovie$($titles$,$genres,years,numberOfEntries$)$;

$//$else if $($choice$==3)$

displayAll$($titles$,$genres,years,numberOfEntries$)$;

$//$else if $($choice$==4)$

$//$searchbyTitle$($titles$,$genres,years,numberOfEntries$)$;

else if $($choice$==5)$

searchByGenre$($titles$,$genres,years,numberOfEntries$)$;

else if $($choice$==6)$

searchByYear$($titles$,$genres,years,numberOfEntries$)$;

$\}$ while $($choice$!=0)$;

System.out.println$("$

THE END"$)$;

$\}$

$/**$

$*$ Allow user to enter a new movie.

$*$

$*$ @param titles array of movie titles

$*$ @param genres array of movie genres

$*$ @param years array of movie copyright dates

$*$ @param n the actual number of movies currently in the array

$*$ @return the new movie count

$*/$

public static int enterMovie$($String $[]$ titles, String $[]$ genres, int $[]$ years, int n$)\{$

Scanner kb$=$ new Scanner$($System$.$in$)$;

System.out.print$("$Enter movie title : $")$;

titles$[$n$]=$ kb$.$nextLine$()$;

System.out.print$("$Enter movie genre: $")$;

genres$[$n$]=$ kb$.$nextLine$()$;

System.out.print$("$Enter year of movie: $")$;

years$[$n$]=$ kb$.$nextInt$()$;

kb$.$nextLine$()$;

return n$+1$;

$\}$

public static int loadMovies$($String $[]$ titles, String $[]$ genres, int $[]$ years$)\{$

return $0$;

$\}$

public static void displayAll$($String $[]$ titles, String $[]$ genres, int $[]$ years, int n$)\{$

int i;

System.out.println$("------------------------------------------------")$;

System.out.printf$("\%-30$s $\%-20$s $\%$s

$",$"TITLE","GENRE","YEAR"$)$;

for $($i$=0$; i