Thread: Java - Going through value in multiple ArrayList (Nested for loop?)

Hi, I just started playing around with Java for awhile, but got caught up in a problem when using ArrayList.
Edit: sorry about that, here's the full overview of it.

CinemaAppMain

public class CinemaAppMain {
  public static void main(String[] args) {
    new CinemaApp().start();
  }
}

CinemaApp

import java.util.ArrayList;
import java.util.Date;
 
public class CinemaApp {
 
 
	private ArrayList<Movie> movies = new ArrayList<Movie>();
	private ArrayList<Theatre> theatres = new ArrayList<Theatre>();
	private ArrayList<MovieScreening> screenings = new ArrayList<MovieScreening>();
	private ArrayList<Customer> customers = new ArrayList<Customer>();
	private ArrayList<Review> reviews = new ArrayList<Review>();
 
    public void start() {
 
	String[] menu = { "Add New Movie", "Add New Theatre", "Add New Movie Screening","Display All Movie Screenings" };
 
	String title = "Sim Bing Chen's Cinema Application";
	while (true) {
	    int choice = Helper.getUserOption(title, menu);
	    if (choice == 1) {
		addMovie();
	    } else if (choice == 2) {
		addTheatre();
	    } else if (choice == 3) {
		addScreening();
	    } else if (choice == 4) {
		registerCustomer();
	    } else if (choice == 5) {
		postReview();
	    } else if (choice == 6){
	    displayAllMovies();
	    } else if (choice == 7){
	    	displayAllTheatres();
	    } else if (choice == 8){
	    	displayAllScreenings();
	    } else if (choice == 9){
	    	displayAllCustomers();
	    } else if (choice == 10){
	    	displayAllReviews();
	    } else if (choice == 11){
	    	bookMovieTicket();
	    } else if (choice == 12){
	    	searchReviewsByMovie();
		break;
	    }
	}
	System.out.println("End of Application");
 
    }
 
    public void addMovie() {
    	System.out.println("- ADD NEW MOVIE -");
    	String title = new String(); // user input
    	String cast1 = new String(); // user input
    	String cast2 = new String(); // user input
    	String[] cast = new String[]{cast1,cast2}; // user input
    	String director = new String(); // user input
    	String genre = new String(); // user input
    	String language = new String(); // user input
    	Date date =  new Date(); // user input
 
    	movies.add(new Movie(title,cast,director,genre,language,date));
    	System.out.println("Added successfully");
    }
 
    public void addTheatre() {
	System.out.println("-ADD NEW THEATRE-");
	String name = new String(); // user input
	String description =  new String(); // user input
	int capacity =  new int(); // user input
 
	theatres.add(new Theatre(name,description,capacity));
	System.out.println("Added successfully");
 
    }
 
 
	public void addScreening() {
    	System.out.println("-ADD NEW SCREENING-");
 
    	String mTitle =  new String(); // user input
    	String tName =  new String(); // user input
 
 
    	 	for (int i=0;i<movies.size();i++){
    		for(int j=0;j<theatres.size();j++){
    		if((movies.get(i).getTitle().contains(mTitle) && movies.get(i).getTitle() != null) || (theatres.get(i).getName().contains(tName) && theatres.get(i).getName() != null)){
    			int year = new int(); // user input
        		int month = new int(); // user input
        		int day = new int(); // user input
        		int hour = new int(); // user input
        		int min = new int(); // user input
 
            	screenings.add(new MovieScreening(Helper.thisDate(year, month, day, hour, min),movies.get(i),theatres.get(i),0));
        		System.out.println("Added successfully");
 
    		}else if((!movies.get(i).getTitle().contains(mTitle) && movies.get(i).getTitle() != null) || (!theatres.get(i).getName().contains(tName) && theatres.get(i).getName() != null)){
    			System.out.println("Your movie or/and theatre cannot be found.");
    		}
    		}
    	}
	}
 
public void displayAllScreenings() {
	System.out.println("-All Movie Screenings-");
 
	for (int i = 0; i < screenings.size(); i++) {
	    System.out.print("[" + (i + 1) + "] ");
	    screenings.get(i).display();
	    Helper.line(45, ".");
	}
    }

MovieScreening

import java.text.SimpleDateFormat;
import java.util.Date;
 
public class MovieScreening {
    private Date dateTime;
    private Movie movieObject;
    private Theatre theatreObject;
    private int bookings;
 
    public MovieScreening(Date dateTime,Movie movieObject,
	    Theatre theatreObject, int bookings) {
	this.dateTime = dateTime;
	this.movieObject = movieObject;
	this.theatreObject = theatreObject;
	this.bookings = bookings;
    }
 
 
	public void display() {
	SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy HH:mm");
	System.out.println("Movie Screening Date & Time : " + df.format(dateTime));
	System.out.println("Movie Title : " + movieObject.getTitle());
	System.out.println("Theatre Name : " + theatreObject.getName());
	System.out.println("Bookings : " + bookings);
    }
	public int getBookings() {
		return bookings;
	}
 
	public void setBookings(int bookings) {
		this.bookings = bookings;
	}
 
	public Movie getMovieObject() {
		return movieObject;
	}
 
	public Theatre getTheatreObject() {
		return theatreObject;
	}
}

I am trying to get the movie name and theatre title from their ArrayList, and I know I need to go through the movie list & theatre list to find their name & title, and compare it with the user input and print out the result.

I use for(int i=0;i<movies.size();i++) to go through the the movie list, and I tried using for(int i=0;i<theatres.size();i++) to go through the theatre list. But when I printing multiple time with different user input value, it will show me strange result (screening have same movie name & theatre name, the else if statement is printed below the user input, user input is printed more than once after the first time).

Help please!

Edit: I know its wrong for me to use nested for loop,if not, another solution is needed to get the item inside both of the list.
(getting the "title" from movie list & "name" from theatre list)

If any one got a solution to get them out, I will appreciate it.

Can we please have the complete code?

--- Update ---

I think the thread has been duplicated, please can you close any one of these.

Please could you post the full code? Also please provide the input and output which you tried.