Question

How do I make it that it rounds up?

it's required that the numbers be (555) 213-000, instead, I get (555) 212-000.

///// Input /////

Zed
5552129999
[email protected]

////// Required Output //////

New number creation tool\n
Enter name\n
Enter phone number\n
Enter email\n
Name: Zed\n
Phone: 5552129999\n
Email: [email protected]\n
Telephone neighbor: (555) 213-0000\n

Here is my code:

public class SmartPhone extends Phone
{
    private String email;
    private String phone;
    private String phone2;

    public SmartPhone()
    {
        super("None",-1);
        phone = "Not set";
        email = "None";
        phone2 = "Not set";
    }

    public SmartPhone(String name, String phone)
    {
        super(name, Long.parseLong(phone));
        this.phone = phone;
        this.email = "None";
    }

    public SmartPhone(String name, String phone, String email)
    {
        super(name, Long.parseLong(phone));
        this.email = email;
        this.phone = phone;
    }

    public boolean hasPhoneNumber()
    {
        return !phone.equals("Not set");
    }

    public String getAreaCode()
    {
        return phone.substring(0,3);
    }

    public String getPrefix()
    {
        return phone.substring(3,6);
    }

    public String getLineNumber()
    {
        return phone.substring(6);
    }

    public String toString()
    {
        return "Name: " + name + "\n" +
                "Phone: " + phone + "\n" +
                "Email: " + email + "\n";
    }

    public String getTeleponeNeighbor()
    {
        if(phone == "Not set")
        {
            return "Cannot calculate phone number neighbor";
        }
        else
            {

            String roundUp = "(";
            roundUp += phone.substring(0,3) + ") ";
            String num1 = Integer.parseInt(phone.substring(3,6)) + "-";
            String num2 = String.valueOf(Integer.parseInt(phone.substring(6,10)) + 1);

            if (num2.length() > 4)
            {
                num2 = num2.substring(num2.length() - 4);
            }
            if (num2.length() < 4)
            {
                num2 = String.format("%04d", Integer.parseInt(num2));
            }
                roundUp += num1;
                roundUp += num2;

                return roundUp;
            }
    }
}

And:

import java.util.Scanner;

public class Demo5
{
    public static void main(String args[])
    {
        Scanner keyboard = new Scanner(System.in);

        System.out.println("New number creation tool");

        System.out.println("Enter name");
        String name = keyboard.nextLine();

        System.out.println("Enter phone number");
        String phoneNumber = keyboard.nextLine();

        System.out.println("Enter email");
        String email = keyboard.nextLine();

        Phone test1 = new SmartPhone(name, phoneNumber, email);

        System.out.print(test1);
        System.out.println("Telephone neighbor: " + ((SmartPhone) test1).getTeleponeNeighbor());
    }
}

Given File:

public class Phone
{
    protected String name;
    protected long number;

    public Phone() {
        this("None", -1);
    }

    public Phone(String name) {
        this(name, -1);
    }

    public Phone(String name, long number) {
        this.name = name;
        this.number = number;
    }

    public String getName() {
        return name;
    }

    public long getNumber() {
        return number;
    }
}

Answer 1

public class SmartPhone extends Phone
{
    private String email;
    private String phone;
    private String phone2;

    public SmartPhone()
    {
        super("None",-1);
        phone = "Not set";
        email = "None";
        phone2 = "Not set";
    }

    public SmartPhone(String name, String phone)
    {
        super(name, Long.parseLong(phone));
        this.phone = phone;
        this.email = "None";
    }

    public SmartPhone(String name, String phone, String email)
    {
        super(name, Long.parseLong(phone));
        this.email = email;
        this.phone = phone;
    }

    public boolean hasPhoneNumber()
    {
        return !phone.equals("Not set");
    }

    public String getAreaCode()
    {
        return phone.substring(0,3);
    }

    public String getPrefix()
    {
        return phone.substring(3,6);
    }

    public String getLineNumber()
    {
        return phone.substring(6);
    }

    public String toString()
    {
        return "Name: " + name + "\n" +
                "Phone: " + phone + "\n" +
                "Email: " + email + "\n";
    }

    public String getTeleponeNeighbor()
    {
        if(phone == "Not set")
        {
            return "Cannot calculate phone number neighbor";
        }
        else
        {
            String roundUp = "(";
            String nextPhone = String.valueOf(Long.parseLong(phone)+1);
            roundUp += nextPhone.substring(0,3) + ") ";
            roundUp += nextPhone.substring(3,6) + "-";
            roundUp += nextPhone.substring(6);
            return roundUp;
        }
    }
}