Braber01

package people;

import java.util.Scanner;
import java.util.regex.*;

public abstract class Person
{
    protected String first,last,email;

    public Person()
    {
        setFirst("");
        setLast("");
        setEmail("");
    }//Person()

    public Person(String first,String last,String email)
    {
        setFirst(first);
        setLast(last);
        setEmail(email);
    }//Person(String,String,String)

    public abstract String getDisplayText();

    public String getFirst(){return this.first;}
    public void setFirst(String first){this.first=first;}

    public String getLast(){return this.last;}
    public void setLast(String last){this.last=last;}

    public String getEmail(){return this.email;}
    public void setEmail(String email){this.email=email;}

    @Override
    public String toString()
    {
        String msg = "Name: " + this.getFirst() + " " + this.getLast() +
            "\n" + "Email: " + this.getEmail();
        return msg;
    }//toString()
}//end class Person
class Customer extends Person
{
    private String num;

    public Customer()
    {
        super();
        setNum("");
    }//Customer()

    public Customer(String first,String last,String email,String num)
    {
        super(first,last,email);
        setNum(num);
    }//Customer(String,String,String,String)

    public String getNum(){return this.num;}
    public void setNum(String num){this.num=num;}

    @Override
    public String toString()
    {
        String msg = "Name: " + this.getFirst() + " " + this.getLast() +
            "\n" + "Email: " + this.getEmail() + "\n" +
            "Customer Number: " + this.getNum();
        return msg;
    }//toString()

    @Override
    public String getDisplayText()
    {
        return this.toString();
    }//getDisplayText()
}//end class Customer
class Employee extends Person
{
    private String SSN;

    public Employee()
    {
        super();
        setSSN();
    }//Employee()

    public Employee(String first,String last,String email,String SSN)
    {
        super(first,last,email,SSN);
        setSSN(SSN);
    }//Employee(String,String,String,String)

    public String getSSN(){return this.SSN;}
    public void setSSN(String SSN){this.SSN=SSN;}

    @Override
    public String toString()
    {
        String msg = "Name: " + this.getFirst() + this.getLast() + "\n" +
            "Email: " + this.getEmail() + "\n" +
            "SSN: " + this.getSSN();
        return msg;
    }

    @Override
    public String getDisplayText()
    {
        return this.toString();
    }
}//end class Employee
class Validator
{
    public static boolean isEmail(String email)
    {
        final String VALID_EMAIL_PATTERN =
            "^[A-Za-z]+[A-Za-z0-9_-]*@[A-Za-z]+\\p{Punct}[A-Za-z]+$";
        Pattern p = Pattern.compile(VALID_EMAIL_PATTERN);
        Matcher m = p.matcher(email);
        return mmatches();
    }//isEmail(String)

    public static String getEmail(Scanner sc,String prompt)
    {
        System.out.print(prompt);
        String email = sc.nextLine();
        while(!isEmail(email))
        {
            System.err.println("Error! Invalid E-mail Pattern.");
            email = sc.nextLine();
        }//end while
        return email;
    }//getEmail(Scanner,String)

    public static boolean isSSN(String SSN)
    {
        final String VALID_SSN="^\\d{3}-\\d{2}-\\d{4}$";
        Pattern p = Pattern.compile(VALID_SSN);
        Matcher m = p.matcher(SSN);
        return m.matches();
    }//isSSN(String)

    public static String getSSN(Scanner sc,String prompt)
    {
        System.out.print(prompt);
        String SSN = sc.nextLine();
        while(!isSSN(SSN))
        {
            System.err.println("Error! Invalid SSN Format.");
            System.out.print(prompt);
            SSN = sc.nextLine();
        }
        return SSN;
    }//getSSN(Scanner,String)
}//end Class Validator
class PeopleApp
{
    public static void main(String[] args)
    {
        @SupressWarnings("unused")
        String first,last,email,SSN;

        System.out.println("Welcome to Braber01's People Tester.");
        System.out.println();

        Scanner sc1 = new Scanner(System.in);

        do
        {
            System.out.println("Choose a Person type:(c/e)");
            String type=sc.next();
            if(type.equalsIgnoreCase("C"))
            {
                System.out.print("Enter First name: ");
                first = sc.nextLine();
                System.out.println();
                System.out.print("Enter Last Name: ");
                last = sc.nextLine();
                System.out.println();
            email = Validator.getEmail(new Scanner(System.in),"Enter email: ");
                System.out.print("Enter Customer Number: ");
                num = sc.nextLine();
                Customer c = new Customer(first,last,email,num);
                c.getDisplayText();
            }
            System.out.print("Add another Object?(y/n): ");
        }while(sc.next().equalsIgnoreCase("Y"));
    }
}