import java.io.*;
import java.util.Vector;
import java.io.File;
import java.io.IOException;
 
public class PropertyRental
 
{
 
    public static Vector v = new Vector();
    public static String menu;
    public static String[] addy;
    public static String pc, hn, mr, ua, readstr;
    public static int i, ln;
    public static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    public static rff Read = new rff();
 
    public static void DataR()
    {
        readstr = Read.readFromText();
        String[] splitArray = null;
        splitArray = readstr.split(",");
        for(int i=0;i<splitArray.length;i++)
        {
        if (v.size()<splitArray.length)
            {
                v.addElement(new PropertyToLet(splitArray[0], splitArray[1], splitArray[2]))  ;  
            }
        }
      }
 
    public static void main()
 
    {
 
        try
        {    
 
            do
            {
            System.out.println("Welcome to your local Property Rental Company");
            System.out.println("You now have the following options");
            System.out.println("");
            System.out.println("1. Add a Property");
            System.out.println("2. Remove a Property");
            System.out.println("3. Display all Properties");
            System.out.println("4. Exit the Program");
            System.out.println("");
            i = Double.valueOf(br.readLine()).intValue();
            System.out.println("");
 
            if(i == 1)
            {
                //BufferedWriter appends to properties.txt
                //Our user input buffer
                BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
                System.out.println("--- Add a Property ---");
 
 
 
 
 
                    //User enters address
                    System.out.println("\nEnter postcode (must be written as pe158nb)");
                    pc = br.readLine();
                    //If the user has entered 'q' to quit, leave this loop
                    System.out.println("Enter house number");
                    hn = br.readLine();
                    System.out.println("Enter monthly rent");
                    mr = br.readLine();
                    //Write our details to file
                    v.addElement(new PropertyToLet(pc, hn, mr));
 
                    PrintWriter outFile;
                    try
                    {
                        outFile = new PrintWriter(new FileWriter("properties.txt" ,true));
                        PropertyToLet obj = (PropertyToLet) (v.lastElement());
                        outFile.println(obj.getpc() + "," + obj.gethn() + "," + obj.getmr());      
                        outFile.close();
                    }
 
                    catch(IOException IOE)
                    {
                        System.err.println(IOE + "Has occured");
                    }         
                }
 
            if(i == 2)
            {
               try
 
               {                
                   System.out.println("\nEnter the line number of the property you wish to remove");
                   int ln = Integer.valueOf(br.readLine()).intValue()-1;
                   BufferedReader br=new BufferedReader(new FileReader("properties.txt"));
                   String line=null;
                   while ((line=br.readLine()) != null) 
                   {
                        addy = line.split(",");
                        PropertyToLet ptl=new PropertyToLet(addy[0],addy[1],addy[2]);
                        v.addElement(ptl);
                   }
                   v.removeElementAt(ln);                   
                   PrintWriter outFile = new PrintWriter(new FileWriter("properties.txt"));
                   for (int i=0; i<v.size(); i++) 
                   {
                        PropertyToLet obj = (PropertyToLet) (v.lastElement());
                        outFile.println(obj.getpc() + "," + obj.gethn() + "," + obj.getmr());      
                   }
                   outFile.close();
                }               
                catch(ArrayIndexOutOfBoundsException aioobe)
                {
                    System.out.println("An Error Has occurred");   
                }
                catch(IOException ex)
                {
                    ex.printStackTrace();
                }
 
            }          
            if(i == 3)
            {             
              {
                  String line="";
                  String data="";
                  try
                  { 
                      BufferedReader br = new BufferedReader(new FileReader("properties.txt"));
                      line = br.readLine();                      
                      int counter=0;
                      do// EOF condition
                      {
                          counter++;
                          System.out.println(counter + ": " + line);
                          data = data + " \n" + line;
                          //line = br.readLine();                                  
                      }
 
                      while( (line=br.readLine()) != null);
                      }
                      catch(IOException ioe)
                      {              
 
                      }
                }
            }          
            if(i == 4)
            {
                //A simple instruction that tells the user how to exit the program
                System.out.println("Press the 'x' button in the corner of the window to quit");
            }
            System.out.println("Do you want to exit [y/n]");
            ua = br.readLine();
            }while(ua.equals ("n"));
        }
        catch(IOException ioe)
        {
 
        }
 
    }
 
}

public class PropertyToLet
{  
    private String postCode; 
    private String houseNumber;
    private String monthlyRent;
 
    public PropertyToLet (String pc, String hn, String mr)
    {
           postCode = pc;
           houseNumber = hn;
           monthlyRent = mr;
    }
 
    public String getpc()
    {
        return postCode;
    }
 
    public String gethn()
    {
        return houseNumber;   
    }
 
    public String getmr()
    {
        return monthlyRent;   
    }
 
}

import java.io.*;
import java.util.*;
 
public class rff
{
 
    public static PropertyRental proprent = new PropertyRental();
 
 
    public String readFromText()
    {
        String line="";
        String data="";
 
        try
        {
        BufferedReader br = new BufferedReader(new FileReader("properties.txt"));
        line = br.readLine();
 
 
 
            do// EOF condition
        {
            //System.out.println(line);
            data = data + " \n" + line;
            //line = br.readLine();
 
        }
        while( (line=br.readLine()) != null);
        }
        catch(IOException ioe)
        {
 
        }
        return data;    
    }
}