READING AND WRITING TXT FILE, GUI COMPONENTS.

Question

HI GUYS I AM JUST NEW TO JAVA AND I AM TRYING TO LEARN SOME MORE IN JAVA. SO I NEED HELP FROM YOU GREAT GUYS WHO KNOWS MORE & MORE THING THAN ME. I CODE A GUI FOR THIS PROGRAM. THE CODE IS BELOW.
This program has to read a txt file to create Food objects which will consist of a food name, a serving size, and a number of calories. A text file is read which contains the calories contained in specific food items. From this data, an array of Food objects will be created and used to populate a combo box for user selection. The Food objects will also be used in calculating the balance calories for a given user on a given day.
User input will be used to create User objects which will be user name, age, gender, height, weight, and Food Diary objects (composition). The Food Diary objects will consist of Date (composition), Food object (composition), number of servings, and a balance. Food Diary objects will consist of the activity on any given day (see text area in sample output screen below). All User objects are saved to a file as objects and can be retrieved on subsequent runs of the program.
The program will calculate the number of calories the user is allowed per day to maintain the user�s current weight (see below for formula to use for this).
BMRMen = 66 + (13.7 * weightPounds/2.2) + (5 * heightInches*2.54) - (6.8 * age)
BMRWomen = 655 + (9.6 * weightPounds/2.2) + (1.8 * heightInches*2.54) - (4.7 * age)
GUI CODE
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class FoodDiaryGUI extends JFrame implements ActionListener {
     JLabel               lblName, lblAge, lblWeight,lblHeight,lblFemale,lblMale,lblFood;
     JTextField          txtName, txtAge, txtWeight,txtHeight;
     JButton               btnSave, btnNewUser;
     JTextArea           outputArea;
     JComboBox          cbFood;
     int currentIndex=0, lastIndex=4;
     public FoodDiaryGUI()
          super ("Food Diary Calculator");
          lblName=               new JLabel("Name: ");
          lblAge=                    new JLabel("Age: ");
          lblWeight=               new JLabel("Weight(lbs): ");
          lblHeight=               new JLabel("Height(inches): ");
          lblFemale=               new JLabel("Female: ");
          lblMale=               new JLabel("Male: ");
          lblFood=               new JLabel("Choose a Food: ");
          txtName=               new JTextField(15);
          txtAge=                    new JTextField(3);
          txtWeight=               new JTextField(6);
          txtHeight=               new JTextField(6);
          outputArea=               new JTextArea(9,20);     
          cbFood=                    new JComboBox();
          cbFood.setPreferredSize(new Dimension(100, 20));
          Container c = getContentPane();
          JPanel northPanel = new JPanel();
          northPanel.setLayout(new FlowLayout());
          btnSave=               new JButton("SAVE");
          northPanel.add(btnSave);
          btnNewUser=               new JButton("NEW USER");
          northPanel.add(btnNewUser);
          btnSave.addActionListener(this);
          btnNewUser.addActionListener(this);
          JPanel centerPanel = new JPanel();
          centerPanel.setLayout(new FlowLayout());
          centerPanel.add(lblName);
          centerPanel.add(txtName);
          centerPanel.add(lblAge);
          centerPanel.add(txtAge);
          centerPanel.add(lblWeight);
          centerPanel.add(txtWeight);
          centerPanel.add(lblHeight);
          centerPanel.add(txtHeight);
          centerPanel.setLayout(new FlowLayout());
          JRadioButton rbMale = new JRadioButton(maleString);
     birdButton.setMnemonic(KeyEvent.VK_M);
     birdButton.setActionCommand(maleString);
     birdButton.setSelected(true);
     JRadioButton rbFemale = new JRadioButton(femaleString);
     catButton.setMnemonic(KeyEvent.VK_F);
     catButton.setActionCommand(femaleString);
     //Group the radio buttons.
     ButtonGroup group = new ButtonGroup();
     group.add(rbMale);
     group.add(rbFemale);
     //Register a listener for the radio buttons.
     rbMale.addActionListener(this);
     rbFemale.addActionListener(this);
     public void actionPerformed(ActionEvent rb) {
     picture.setIcon(new ImageIcon("images/"
     + rb.getActionCommand()
     + ".gif"));
          radioGroup.add(rbMale);
          radioGroup.add(rbFemale);
          centerPanel.add(rbMale);
          centerPanel.add(rbFemale);
          centerPanel.add(lblFood);
          centerPanel.add(cbFood);
          JPanel southPanel = new JPanel();
          southPanel.setLayout(new FlowLayout());
          southPanel.add (outputArea);
          c.add(northPanel,BorderLayout.NORTH);
          c.add(centerPanel,BorderLayout.CENTER);
          c.add(southPanel,BorderLayout.SOUTH);
          setSize(650,300);
          setVisible(true);
          //add listener to button components.
          public void actionPreformed(ActionEvent e)
               if (e.getSource()==btnSave)
                    currentIndex++;
                    currentIndex--;
          public static void main (String[] args)
               FoodDiaryGUI application = new FoodDiaryGUI();
               application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          public void actionPerformed(ActionEvent arg0) {
               // TODO Auto-generated method stub
THE .txt file is as:
1000 ISLAND, SALAD DRSNG,LOCAL*1 TBSP*25
1000 ISLAND, SALAD DRSNG,REGLR*1 TBSP*60
100% NATURAL CEREAL *1 OZ*135
40% BRAN FLAKES, KELLOGG'S*1 OZ*90
40% BRAN FLAKES, POST*1 OZ*90
ALFALFA SEEDS, SPROUTED, RAW*1 CUP*10
ALL-BRAN CEREAL*1 OZ*70
ALMONDS, WHOLE*1 OZ*165
ANGELFOOD CAKE, FROM MIX*1 PIECE*125
APPLE JUICE, CANNED*1 CUP*115
i hope this forum site has to many java professionals and this problem is nothing for them. for me it is great.

Answer 1

Stick to using a single userid and a single posting of a question:
http://forum.java.sun.com/thread.jspa?threadID=731264&tstart=0