Adding a contact to an address book, please help!

Question

hi,
I'm trying to write new infomation to my file but i cant seem to get it to work.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.lang.*;
import java.text.*;
public class AddressBook extends JFrame implements ActionListener
     FlowLayout leftLayout;
     JFrame winNew;
JTextField txtName, txtPhone, txtMobile, txtAddress;
JButton btnImport, btnAdd, btnNext, btnPrevious, btnSave;
JLabel lblTitle, lblName, lblPhone, lblMobile, lblAddress;
JPanel pTitle, pName, pPhone, pMobile, pAddress, pButtons;
     ArrayList<String> Name = new ArrayList<String>();
     ArrayList<String> Phone = new ArrayList<String>();
     ArrayList<String> Mobile = new ArrayList<String>();
     ArrayList<String> Address = new ArrayList<String>();
     ArrayList<String> temp = new ArrayList<String>();
     int index = 0;
          public static void main(String[] args)
          new AddressBook();
     public AddressBook()
          final int WIDTH = 450;
          final int HEIGHT = 400;
          JFrame win = new JFrame("Address Book");
          win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          leftLayout = new FlowLayout(FlowLayout.LEFT);
          pTitle = new JPanel();
          pTitle.setLayout(new FlowLayout(FlowLayout.CENTER));
          lblTitle = new JLabel("Address Book");
          pTitle.add(lblTitle);
          win.add(pTitle);
          win.setLayout(new GridLayout(6,1));
          win.setSize(WIDTH, HEIGHT);
          win.setBackground(Color.BLUE);
          win.setResizable(false);
          win.setLocationRelativeTo(null);
          pName = new JPanel();
          pName.setLayout(leftLayout);
          lblName = new JLabel("Name: ");
          txtName = new JTextField(20);
          win.add(pName);
          pName.add(lblName);
          pName.add(txtName);
          pPhone = new JPanel();
          pPhone.setLayout(leftLayout);
          lblPhone = new JLabel("Phone: ");
          txtPhone = new JTextField(13);
          win.add(pPhone);
          pPhone.add(lblPhone);
          pPhone.add(txtPhone);
          pMobile = new JPanel();
          pMobile.setLayout(leftLayout);
          lblMobile = new JLabel("Mobile: ");
          txtMobile = new JTextField(14);
          win.add(pMobile);
          pMobile.add(lblMobile);
          pMobile.add(txtMobile);
          pAddress = new JPanel();
          pAddress.setLayout(leftLayout);
          lblAddress = new JLabel("Address: ");
          txtAddress = new JTextField(30);
          win.add(pAddress);
          pAddress.add(lblAddress);
          pAddress.add(txtAddress);
          pButtons = new JPanel();
          btnImport = new JButton("Import");
          pButtons.add(btnImport);
          btnImport.addActionListener(this);
          btnAdd = new JButton("Add");
          pButtons.add(btnAdd);
          btnAdd.addActionListener(this);
          btnPrevious = new JButton("Previous");
          pButtons.add(btnPrevious);
          //btnPrevious.addActionListener(this);
          btnNext = new JButton("Next");
          pButtons.add(btnNext);
          //btnNext.addActionListener(this);
          btnSave = new JButton("Save");
          pButtons.add(btnSave);
          btnSave.addActionListener(this);
          win.add(pButtons);
          win.setVisible(true);
     public void actionPerformed(ActionEvent e)
          if (e.getSource() == btnImport)
               importContacts();
          if (e.getSource() == btnAdd)
               clearScreen();
          if (e.getSource() == btnPrevious)
               Previous();
          if (e.getSource() == btnSave)
     writetoFile();
          else if (e.getSource() == btnNext)
               Next();
          public void importContacts()
          try
               BufferedReader infoReader = new BufferedReader(new FileReader("../files/example.buab"));
               int i = 0;
               String loadContacts;
               while ((loadContacts = infoReader.readLine()) !=null)
                    temp.add(loadContacts);
                    i++;
               int a = 0;
               int b = 0;
               for (a = 0, b = 0; a < temp.size(); a++, b++)
               if (b == 4)
                    b = 0;
               if (b == 0)
                    Name.add(temp.get(a));
               if (b == 1)
                    Phone.add(temp.get(a));
               if (b == 2)
                    Mobile.add(temp.get(a));
               if (b == 3)
                    Address.add(temp.get(a));
          catch (IOException ioe)
          ioe.printStackTrace();
          txtName.setText(Name.get(0));
          txtPhone.setText(Phone.get(0));
          txtMobile.setText(Mobile.get(0));
          txtAddress.setText(Address.get(0));
          public void Previous()
               if (index > 0)
                    index--;
               importContacts();
          public void Next()
               if(index < temp.size() - 1)
               index++;
               importContacts();
          public void clearScreen()
               txtName.setText("");
               txtPhone.setText("");
               txtMobile.setText("");
               txtAddress.setText("");
          public void writetoFile()
PrintStream out = new PrintStream("../files/example.buab");
for
(int index = 0; index < Name.size(); index++)
(int index = 0; index < Phone.size(); index++)
(int index = 0; index < Mobile.size(); index++)
(int index = 0; index < Address.size(); index++)
out.println("");
out.println("");
out.println(Name.get(index));
out.println(Phone.get(index));
out.println(Mobile.get(index));
out.println(Address.get(index));
i get an ioexception, must catch or throw, i tried to add catch but it says i must have try, so i added try and it says i cant have catch without try! what am I doing wrong??
am i doing it right also? should this be in my options? i.e if i press save button?
also why isn't my next and previous buttons working??
and one more thing, is there an easier way to show the contents of my file to the jtextfields? (import contacts class)
thanks

Answer 1

sorry i did try to do this but didnt see the code bit.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.lang.*;
import java.text.*;
public class AddressBook extends JFrame implements ActionListener
     FlowLayout leftLayout;
     JFrame winNew;
        JTextField txtName, txtPhone, txtMobile, txtAddress;
        JButton btnImport, btnAdd, btnNext, btnPrevious, btnSave;
        JLabel lblTitle, lblName, lblPhone, lblMobile, lblAddress;
        JPanel pTitle, pName, pPhone, pMobile, pAddress, pButtons;
         ArrayList<String> Name = new ArrayList<String>();
         ArrayList<String> Phone = new ArrayList<String>();
         ArrayList<String> Mobile = new ArrayList<String>();
         ArrayList<String> Address = new ArrayList<String>();
         ArrayList<String> temp = new ArrayList<String>();
         int index = 0;
              public static void main(String[] args)
                  new AddressBook();
            public AddressBook()
          final int WIDTH = 450;
          final int HEIGHT = 400;
          JFrame win = new JFrame("Address Book");
          win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          leftLayout = new FlowLayout(FlowLayout.LEFT);
          pTitle = new JPanel();
          pTitle.setLayout(new FlowLayout(FlowLayout.CENTER));
          lblTitle = new JLabel("Address Book");
          pTitle.add(lblTitle);
          win.add(pTitle);
          win.setLayout(new GridLayout(6,1));
          win.setSize(WIDTH, HEIGHT);
          win.setBackground(Color.BLUE);
          win.setResizable(false);
          win.setLocationRelativeTo(null);
          pName = new JPanel();
          pName.setLayout(leftLayout);
          lblName = new JLabel("Name: ");
          txtName = new JTextField(20);
          win.add(pName);
          pName.add(lblName);
          pName.add(txtName);
          pPhone = new JPanel();
          pPhone.setLayout(leftLayout);
          lblPhone = new JLabel("Phone: ");
          txtPhone = new JTextField(13);
          win.add(pPhone);
          pPhone.add(lblPhone);
          pPhone.add(txtPhone);
          pMobile = new JPanel();
          pMobile.setLayout(leftLayout);
          lblMobile = new JLabel("Mobile: ");
          txtMobile = new JTextField(14);
          win.add(pMobile);
          pMobile.add(lblMobile);
          pMobile.add(txtMobile);
          pAddress = new JPanel();
          pAddress.setLayout(leftLayout);
          lblAddress = new JLabel("Address: ");
          txtAddress = new JTextField(30);
          win.add(pAddress);
          pAddress.add(lblAddress);
          pAddress.add(txtAddress);
          pButtons = new JPanel();
          btnImport = new JButton("Import");
          pButtons.add(btnImport);
          btnImport.addActionListener(this);
          btnAdd = new JButton("Add");
          pButtons.add(btnAdd);
          btnAdd.addActionListener(this);
          btnPrevious = new JButton("Previous");
          pButtons.add(btnPrevious);
          //btnPrevious.addActionListener(this);
          btnNext = new JButton("Next");
          pButtons.add(btnNext);
          //btnNext.addActionListener(this);
          btnSave = new JButton("Save");
          pButtons.add(btnSave);
          btnSave.addActionListener(this);
          win.add(pButtons);
          win.setVisible(true);
         public void actionPerformed(ActionEvent e)
                  if (e.getSource() == btnImport)
                       importContacts();
                  if (e.getSource() == btnAdd)
                       clearScreen();
                      if (e.getSource() == btnPrevious)
                       Previous();   
                      if (e.getSource() == btnSave)
                     writetoFile();
                     else if (e.getSource() == btnNext)
                       Next();
              public void importContacts()
                  try
                           BufferedReader infoReader = new BufferedReader(new FileReader("../files/example.buab"));
                           int i = 0;
                           String loadContacts;
                           while ((loadContacts = infoReader.readLine()) !=null)
                                    temp.add(loadContacts);
                                    i++;
                           int a = 0;
                           int b = 0;
                           for (a = 0, b = 0; a < temp.size(); a++, b++)
                               if (b == 4)
                                        b = 0;
                               if (b == 0)
                                        Name.add(temp.get(a));   
                               if (b == 1)
                                        Phone.add(temp.get(a));   
                               if (b == 2)
                                        Mobile.add(temp.get(a));   
                               if (b == 3)
                                        Address.add(temp.get(a));   
                      catch (IOException ioe)
                          ioe.printStackTrace();
                  txtName.setText(Name.get(0));
                  txtPhone.setText(Phone.get(0));
                  txtMobile.setText(Mobile.get(0));
                  txtAddress.setText(Address.get(0));
          public void Previous()
               if (index > 0)
                    index--;
               importContacts();
          public void Next()
               if(index < temp.size() - 1)
               index++;
               importContacts();
          public void clearScreen()
               txtName.setText("");
               txtPhone.setText("");
               txtMobile.setText("");
               txtAddress.setText("");
          public void writetoFile()
                       PrintStream out = new PrintStream("../files/example.buab");
                        for
                        (int index = 0; index < Name.size(); index++)
                        (int index = 0; index < Phone.size(); index++)
                        (int index = 0; index < Mobile.size(); index++)
                        (int index = 0; index < Address.size(); index++)
                               out.println("");
                               out.println("");
                               out.println(Name.get(index));
                               out.println(Phone.get(index));
                               out.println(Mobile.get(index));
                               out.println(Address.get(index));
                        out.close();
}