Question

• Support the storing of additional user information: street address (string), city( string), state (string), and 10-digit phone number (long integer, contains area code and does not include special characters such as '(', ')', or ( '-'), by tab
• Store the data in an ArrayList object

How can I produce this program using a text file being read with an ArrayList incorporated?

example of a text file: the goal is to produce 25 contacts

Kent    Brockman   12345(zip)    123 Hope St(address)     Brooklyn(city)   NY(state)    2014567894(#)
Charles Burns      24923(zip)         123 Fast St     Harlem      NY     2014567456

Answer 1

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

public class ReadPersons {

        static class Person {
                private String firstName;
                private String lastName;
                private int zip;
                private String address;
                private String city;
                private String state;
                private String phone;

                public String getFirstName() {
                        return this.firstName;
                }

                public void setFirstName(String firstName) {
                        this.firstName = firstName;
                }

                public String getLastName() {
                        return this.lastName;
                }

                public void setLastName(String lastName) {
                        this.lastName = lastName;
                }

                public int getZip() {
                        return this.zip;
                }

                public void setZip(int zip) {
                        this.zip = zip;
                }

                public String getAddress() {
                        return this.address;
                }

                public void setAddress(String address) {
                        this.address = address;
                }

                public String getCity() {
                        return this.city;
                }

                public void setCity(String city) {
                        this.city = city;
                }

                public String getState() {
                        return this.state;
                }

                public void setState(String state) {
                        this.state = state;
                }

                public String getPhone() {
                        return this.phone;
                }

                public void setPhone(String phone) {
                        this.phone = phone;
                }

                public String toString() {
                        return "firstName: " + firstName + ", " + "lastName: " + lastName + ", " + "zip: " + zip + ", "
                                        + "address: " + address + ", " + "city: " + city + ", " + "state: " + state + ", " + "phone: "
                                        + phone;
                }
        }

        public static void main(String[] args) throws FileNotFoundException {

                String fileName = "persons.txt"; // change it here.
                Scanner reader = new Scanner(new File(fileName));

                // to store the data ead from the file
                ArrayList<Person> persons = new ArrayList<>();

                // now read the file one line at a time
                String line;
                while (reader.hasNextLine()) {
                        line = reader.nextLine();
                        String tokens[] = line.split("\t");
                        Person p = new Person();
                        p.setFirstName(tokens[0]);
                        p.setLastName(tokens[1]);
                        p.setZip(Integer.parseInt(tokens[2]));
                        p.setAddress(tokens[3]);
                        p.setCity(tokens[4]);
                        p.setState(tokens[5]);
                        p.setPhone(tokens[6]);

                        // add the person into arraylist
                        persons.add(p);
                }

                // Now print the list.
                for (Person p : persons) {
                        System.out.println(p);
                }
                reader.close();
        }

}

**************************************************
persons.txt:
Kent    Brockman    12345    123 Hope St    Brooklyn    NY    2014567894
Charles    Burns    24923    123 Fast St    Harlem    NY    2014567456



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