Wierd error any tips?

Question

hey guys am getting a error in my app which is wierd, it says
E:\test>javac Example.java
Example.java:126: cannot resolve symbol
symbol : variable HeightField
location: class Example
heightString = HeightField.getText();
does unresolved symbol mean its not already declared? because i have it for sure. al include the relevant methods below
public void BMIcalc(ActionEvent event)
public String getName() {
          return NameField.getText();
          public String getHeights() {
          return HeightField.getText();
          public String getWeights() {
          return WeightField.getText();
          String  heightString, weightString, result;
          double  height, weight;
          int     BMI;
          // Get input values
        heightString = getHeights(); <<<<<<calling get heights method;
        weightString = getWeights();<<<<<<calling get weights method;
        //Convert input to numbers
        height = convertToDouble(heightString);
        weight = convertToDouble(weightString);
        //Compute the BMI
        BMI = computeBMI(height, weight);
        //Display the result
        result = "Your BMI is " + BMI;
//        BMILabel.setText(result);
       // add( BMILabel );
        doLayout( );
    }anyone got a tip on whats wrong? cheers in advance

Answer 1

this is bad, after i include the method with datarecord class it gets worse error wise. am including the ful code this time sigh this is rough
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.io.*;
import javax.swing.border.*;
class DataRecord extends JPanel {
     JTextField NameField, HeightField, WeightField;
     JRadioButton MaleButton, FemaleButton;
     public DataRecord(int num) {
          JPanel west = new JPanel();
          MaleButton = new JRadioButton("MALE");
          FemaleButton = new JRadioButton("FEMALE");
          ButtonGroup group = new ButtonGroup();
          group.add(MaleButton);
          group.add(FemaleButton);
          west.setLayout(new GridLayout(0,2));
          west.add(new JLabel("Record "+num));
          west.add(new JLabel(""));
          west.add(new JLabel("Name      "));
          NameField = new JTextField(15);
          west.add(NameField);
          west.add(new JLabel("Height      "));
          HeightField = new JTextField(15);
          west.add(HeightField);
          west.add(new JLabel("Weight      "));
          WeightField = new JTextField(15);
          west.add(WeightField);
          west.add(MaleButton);
          west.add(FemaleButton);
          setLayout(new FlowLayout(FlowLayout.CENTER));
          add(west);
          public String getName() {
          return NameField.getText();
          public String getHeights() {
          return HeightField.getText();
          public String getWeights() {
          return WeightField.getText();
public class Example extends JFrame implements ActionListener {
     JPanel recordsPanel;
     ArrayList Records;
     JButton Save, add, CalcBMI;
     public Example() {
          setTitle("Example");
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          setResizable(true);
          Records = new ArrayList();          
          Records.add(new DataRecord(1));
          recordsPanel = new JPanel();
          recordsPanel.setLayout(new GridLayout(0,1));
          recordsPanel.add((DataRecord)Records.get(0));
          Container c = getContentPane();
          c.setLayout(new BorderLayout());
          JScrollPane jsp = new JScrollPane(recordsPanel,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
          c.add(jsp,BorderLayout.CENTER);
          JPanel south = new JPanel();
          south.setLayout(new FlowLayout(FlowLayout.CENTER));
          CalcBMI= new JButton("Calculate BMI");
          south.add(CalcBMI);
          CalcBMI.addActionListener(this);
          add = new JButton("Add Record");
          south.add(add);
          add.addActionListener(this);
          Save = new JButton("Save Records");
          south.add(Save);
          Save.addActionListener(this);
          c.add(south,BorderLayout.SOUTH);
          pack();
          setSize(this.getWidth(),400);
          show();
     public void actionPerformed(ActionEvent e) {
          if (e.getSource() == Save) {
               try {
               catch (IOException ioe) {
                    ioe.printStackTrace();
          else if (e.getSource() == add) add();
     protected void add() {
          DataRecord dr = new DataRecord(Records.size()+1);
          Records.add(dr);
          recordsPanel.add(dr);
          validate();
public void BMIcalc(ActionEvent event)
          String  heightString, weightString, result;
          double  height, weight;
          int     BMI;
          // Get input values
        heightString = getHeights();
        weightString = getWeights();
        //Convert input to numbers
        height = convertToDouble(heightString);
        weight = convertToDouble(weightString);
        //Compute the BMI
        BMI = computeBMI(height, weight);
        //Display the result
        result = "Your BMI is " + BMI;
//        BMILabel.setText(result);
       // add( BMILabel );
        doLayout( );
     private int computeBMI(double height, double weight)
        int BMI;
        BMI = (int) Math.round( weight / (height*height) );
        return BMI;
private double convertToDouble( String str )
        Double doubleObj = new Double( str );
        return doubleObj.doubleValue( );
public static void main(String[] args) {
          new Example();
}