NullPointerException when accesing another class's attribute in java

Question

I'd like to understand what's the error here. I'm trying to declare a String variable which contains the name attribute of another class like so:

    public static void findContact() {
        int se = 1;
        String nom;
        String nomS;
        Contact ce;
        while (se == 1) {
            nom = JOptionPane.showInputDialog("Name of desired contact: ");
            int i;
            for (i = 0; i <= it; i++) {
                ce = c[i];
                nomS = ce.getName();//here is the error
                if (nomS.equalsIgnoreCase(nom)) {
                    System.out.println(c[i]);
                }
            }
            se = Integer.parseInt(JOptionPane.showInputDialog("Would you like to search for another contact [1]Y [2]N"));
        }
    }

c, the contacts list was declared as a constant like so[i'll omit unnecessary code]:

    private static final Contact c[] = new Contact[100];

and the contacts class was declared like so [i'll show the relevant parts]:

public class Contact {
    private String name;
    private int phone;
    private String mail;

    public Contact() {
        name = " ";
        phone = 0;
        mail = " ";
    }

    public Contacto(String name, int phone, String mail) {
        this.name = name;
        this.phone = phone;
        this.mail = mail;
    }

    public String getName() {
        return name;
    }

        @Override
    public String toString() {
        return name + phone + mail;
    }

I've tried creating another Contact type variable inside the method:

Contact ce = new Contact();

or

Contact ce = new Contact("",1,"");

To no avail. The worst part is that the code actually compiles and shows what it's supposed to show, it does compare and show the contact as if it worked perfectly but i still get this [My variables are in spanish in the actual code]: Java console result

Thanks in advance to any and all reading and helping.

Edit: I have an array filler method:

    public static void addContact() {
        String nom;
        int phone;
        String mail;
        int se = 1;
        while (se == 1 ) {
            nom = JOptionPane.showInputDialog("Name of contact: ");
            phone = Integer.parseInt(JOptionPane.showInputDialog("Phone number: "));
            mail = JOptionPane.showInputDialog("contact's mail");
            System.out.println(nom + " " + phone + " " + mail);
            Contact con = new Contact(nom, phone, mail);
            c[it] = con;
            System.out.println(c[0]);
            it++;
            se = Integer.parseInt(JOptionPane.showInputDialog("Add another contact 1Y 2N"));
        }
    }

So the array is filled with at least 1 at any given moment.