I'm having trouble finding a problem in this program that supposedly converts currencies, is it possible to find some help from specialists in the Java programming language ...?

the codes here:

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.* ;

public class CurrencyConvertor extends JFrame
{

    private JLabel jLabelFrom;
    private JLabel jLabelTo;
    private JTextField jTextFieldFrom;
    private JTextField jTextFieldTo;
    private JList jListFrom;
    private JList jListTo;
    private JButton jButtonCovert;
    private JButton jButtonClose;
    private JPanel contentPane;


    public CurrencyConvertor()
    {
        super();
        initializeComponent();


        this.setVisible(true);
    }


    private void initializeComponent()
    {
        ArrayList arr;

        jLabelFrom = new JLabel();
        jLabelTo = new JLabel();
        jTextFieldFrom = new JTextField();
        jTextFieldTo = new JTextField();
        jListFrom = new JList();
        jListTo = new JList();
        jButtonCovert = new JButton();
        jButtonClose = new JButton();
        contentPane = (JPanel)this.getContentPane();


        jLabelFrom.setText("From:");

        jLabelTo.setText("To:");

        jTextFieldFrom.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                jTextFieldFrom_actionPerformed(e);
            }

        });

        jTextFieldTo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                jTextFieldTo_actionPerformed(e);
            }

        });

        String[]ListFrom = new String[8];
        ListFrom[0]="USD:Utd States $";
        ListFrom[1]="EURO:Euro";
        ListFrom[2]="GBP:Utd Kingdom Pnd";
        ListFrom[3]="JPY:Japan Yen";
        ListFrom[4]="CAD:Canada $";
        ListFrom[5]="AUD:Australia $";
        ListFrom[6]="CHF:Switzerland Fr";
        ListFrom[7]="AED:Utd Arab Emirates Dhs";
        Container contentpane;
          contentpane = getContentPane();
          contentpane.setLayout(new FlowLayout());
          jListFrom = new JList(ListFrom);
          jListFrom.setSelectedIndex(0);
          jListFrom.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        jListFrom.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent e)
            {
                jListFrom_valueChanged(e);
            }

        });

        String[]ListTo = new String[8];
        ListTo[0]="USD:Utd States $";
        ListTo[1]="EURO:Euro";
        ListTo[2]="GBP:Utd Kingdom Pnd";
        ListTo[3]="JPY:Japan Yen";
        ListTo[4]="CAD:Canada $";
        ListTo[5]="AUD:Australia $";
        ListTo[6]="CHF:Switzerland Fr";
        ListTo[7]="AED:Utd Arab Emirates Dhs";

          contentpane = getContentPane();
          contentpane.setLayout(new FlowLayout());
          jListTo = new JList(ListTo);
          jListTo.setSelectedIndex(0);
          jListTo.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        jListTo.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent e)
            {
                jListTo_valueChanged(e);
            }

        });

        jButtonCovert.setText("Convert");
        jButtonCovert.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                jButtonCovert_actionPerformed(e);
            }

        });

        jButtonClose.setText("Close");
        jButtonClose.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                jButtonClose_actionPerformed(e);

            }

        });

        contentPane.setLayout(null);
        addComponent(contentPane, jLabelFrom, 17,25,60,18);
        addComponent(contentPane, jLabelTo, 227,27,60,18);
        addComponent(contentPane, jTextFieldFrom, 13,260,100,26);
        addComponent(contentPane, jTextFieldTo, 222,258,100,29);
        addComponent(contentPane, jListFrom, 13,50,196,184);
        addComponent(contentPane, jListTo, 228,51,191,185);
        addComponent(contentPane, jButtonCovert, 124,258,83,28);
        addComponent(contentPane, jButtonClose, 338,258,83,28);

        this.setTitle("CurrencyConvertor - extends JFrame");
        this.setLocation(new Point(0, 2));
        this.setSize(new Dimension(455, 344));
    }


    private void addComponent(Container container,Component c,int x,int y,int width,int height)
    {
        c.setBounds(x,y,width,height);
        container.add(c);
    }


    private void jTextFieldFrom_actionPerformed(ActionEvent e)
    {
        System.out.println("\njTextFieldFrom_actionPerformed(ActionEvent e) called.");


    }

    private void jTextFieldTo_actionPerformed(ActionEvent e)
    {
        System.out.println("\njTextFieldTo_actionPerformed(ActionEvent e) called.");

    }

    private void jListFrom_valueChanged(ListSelectionEvent e)
    {
        System.out.println("\njListFrom_valueChanged(ListSelectionEvent e) called.");
        if(!e.getValueIsAdjusting())
        {
            Object o = jListFrom.getSelectedValue();
            System.out.println(">>" + ((o==null)? "null" : o.toString()) + " is selected.");


        }
    }

    private void jListTo_valueChanged(ListSelectionEvent e)
    {
        System.out.println("\njListTo_valueChanged(ListSelectionEvent e) called.");
        if(!e.getValueIsAdjusting())
        {
            Object o = jListTo.getSelectedValue();
            System.out.println(">>" + ((o==null)? "null" : o.toString()) + " is selected.");


        }
    }

    private void jButtonCovert_actionPerformed(ActionEvent e)
    {
        System.out.println("\njButtonCovert_actionPerformed(ActionEvent e) called.");


            jTextFieldFrom.getText();
                int jTextFieldFrom = Integer.ParseInt();

                String jTextFieldFrom = "RATES.txt";
            String content = new String ("");

             FileInputStream file = new FileInputStream(jTextFieldFrom);
            file.read();




                jTextFieldTo.getText();
                int jTextFieldTo = Integer.ParseInt();

                String jTextFieldFrom = "ConversionLog.txt";
            FileOutputStream file = new FileOutputStream(jTextFieldFrom);
            file.write();


    }


    private void jButtonClose_actionPerformed(ActionEvent e)
    {
        System.out.println("\njButtonClose_actionPerformed(ActionEvent e) called.");


              String message = "Thank you for using Our Currency Convertor";

           JOptionPane.showMessageDialog(null,message);
           System.exit(0);
    }

    public static void main(String[] args)
    {
        JFrame.setDefaultLookAndFeelDecorated(true);
        JDialog.setDefaultLookAndFeelDecorated(true);
        try
        {
            UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        }
        catch (Exception ex)
        {
            System.out.println("Failed loading L&F: ");
            System.out.println(ex);
        }
        new CurrencyConvertor();
    }

}

Edited 3 Years Ago by mike_2000_17: Fixed formatting

when i compile this what i get

1- cannot find symbol method ParseInt()
2- jTextFieldFrom is already defined in jButtonCovert_actionPerformed (java.awt.event.ActionEvent)
3- cannot find symbol constructor FileInputStream(int)
4- cannot find symbol method ParseInt()
5- jTextFieldFrom is already defined in jButtonCovert_actionPerformed(java.awt.event.ActionEvent)
6- file is already defined in jButtonCovert_actionPerformed(java.awt.event.ActionEvent)
7- cannot find symbol constructor FileOutputStream(int)
8- cannot find symbol method write()

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