import java.util.*;

public class phonebook
{

    static String [] notelf;
    static String [] user;

    public static void main(String[]args)
    {
        Scanner scan = new Scanner(System.in);
        int jmlhdata=0, choice = 0;

        do
        {
            System.out.println("e-Phonebook");
            System.out.println("===========");
            System.out.println("1. Input Phonebook Data");
            System.out.println("2. Tampilkan Isi Phonebook");
            System.out.println("3. Exit");
            System.out.print("Input Menu : ");
            do
            {
                try
                {
                    choice = scan.nextInt();
                    scan.nextLine();
                }
                catch(Exception e)
                {
                    scan.nextLine();
                    System.out.println("Input Yang Kamu Masukan Salah");
                }
            }
            while(choice <1 || choice >3);
            switch(choice)
            {
                case 1:
                if(jmlhdata == 0)
                {
                    System.out.println("");
                    System.out.println("Tentukan Jumlah Data Yang Akan Di Input!");
                    System.out.print("Jumlah Data : ");
                    try
                    {
                        jmlhdata = scan.nextInt();
                        scan.nextLine();
                    }
                    catch(Exception e)
                    {
                        scan.nextLine();
                        System.out.println("Hanya Angka Yang Diperbolehkan!");
                    }
                }

                notelf = new String[jmlhdata];
                user = new String[jmlhdata];

                String phonebook;
                for(int i = 0;i<notelf.length;i++)
                {
                    System.out.println("");
                    System.out.print("Input Data [Nama # Nomor Telfon] : ");
                    phonebook = scan.nextLine();
                    if(!phonebook.contains("#"))
                    {
                        System.out.println("Format Phonebook Salah!");
                        i--;
                    }
                    else
                    {
                        String[] book = phonebook.split("#");
                        user[i] = book[0];
                        notelf[i] = book[1];
                    }
                    System.out.println("");
                }
                System.out.println("Data Phonebook Telah Di Input");
                System.out.println("");
                    break;

                case 2:

                if(jmlhdata ==0)
                {
                    System.out.println("Data Tidak Ada!");
                }
                else
                {
                    for (int i = 0; i < jmlhdata;i ++)
                    {
                        System.out.println("");
                        System.out.println("No : " +(i+1));
                        System.out.println("Nama : " +user[i]);
                        System.out.println("No Telfon : " +notelf[i]);
                        System.out.println("");
                    }
                }
                case 3:
                break;
            }
        }while(choice !=3);
    }
}