private static void queryContact() {
    System.out.println("Enter existing contact name: ");
    String name = scanner.nextLine();
    Contacts existingContactRecord = mobilePhone.queryContact(name);

    if (existingContactRecord == null) {
      System.out.println("Contact not found");
      return;
    }

    System.out.println(
        "Name: "
            + existingContactRecord.getContactName()
            + ", phone number is "
            + existingContactRecord.getPhoneNumber());
  }