import java.io.*;

public class Person implements Serializable {
    public String firstName;
    public String lastName;
    private String password;
    transient Thread worker;

    public Person(String firstName, String lastName, String password) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.password = password;
    }
    public String toString() {
        return new String(lastName + ", " + firstName);
    }
}

class WritePerson {
    public static void main(String [] args) {
        Person p = new Person("Fred", "Wesley", "cantguessthis");
        ObjectOutputStream oos = null;
        try {
            oos = new ObjectOutputStream(
                  new FileOutputStream("Person.ser"));
            oos.writeObject(p);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            if (oos != null) {
                try {oos.flush();} catch (IOException ioe) {}
                try {oos.close();} catch (IOException ioe) {}
            }
        }
    }
}

class ReadPerson {
    public static void main(String [] args) {
        ObjectInputStream ois = null;
        try {
            ois = new ObjectInputStream(
                  new FileInputStream("Person.ser"));
            Object o = ois.readObject();
            System.out.println("Read object " + o);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            if (ois != null) {
                try {ois.close();} catch (IOException ioe) {}
            }
        }
    }
}