Error in FileReader

[Yohan Weerasinghe]

Hi,

Here I am trying to read a text file using java. But when I try to compile that, I am getting the error "Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: Uncompilable source code - cannot find symbol". This error is coming from line number 173, from "FileReader". Here is my code

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.text.*;
import javax.swing.Timer;
import javax.swing.border.*;
import java.io.*;

public class musicOnWeb extends JFrame{


    //Card1 stuff//
    JLabel logo, titleData1, titleData2, category, title1, title2, title3, title4, image, dater, listOfCd;

    JButton classic, western, pop, jazz, cart;

    JCheckBox check1, check2, check3, check4;

    Icon logoImage, mainImage;

    GridBagLayout gbl1;
    GridBagConstraints gbc1;

    Timer timer1=null;

    forTime f = new forTime();

    public musicOnWeb(String str)
    {
        super(str);

        timer1 = new Timer(1000,f);
        timer1.start();

        //******************Declaring Card1**********************//

        logoImage = new ImageIcon("C:/javay/MusicOnWeb/logo.jpg");

        titleData1 = new JLabel("Music On Web",JLabel.CENTER);
        titleData2 = new JLabel("An online Music Store",JLabel.CENTER);

        category = new JLabel("Select the Category");
        title1 = new JLabel("title1");
        title2 = new JLabel("title2");
        title3 = new JLabel("title3");
        title4 = new JLabel("title4");
        dater = new JLabel("Date");
        listOfCd = new JLabel("List Of CD's available",JLabel.CENTER);

        logo = new JLabel(logoImage);
        image = new JLabel("Image");

        classic = new JButton("Classic");
        western = new JButton("Western");
        pop = new JButton("POP");
        jazz = new JButton("Jazz");
        cart = new JButton("Add to Cart");

        check1 = new JCheckBox();
        check2 = new JCheckBox();
        check3 = new JCheckBox();
        check4 = new JCheckBox();

        JPanel subPanel = new JPanel();
        subPanel.setLayout(new GridLayout(2,1));
        subPanel.add(titleData1);
        subPanel.add(titleData2);


        JPanel northPanel = new JPanel();
        northPanel.setLayout(new FlowLayout());
        northPanel.add(logo);
        northPanel.add(subPanel);
        northPanel.setBorder(new LineBorder(Color.BLACK,1));
        

        JPanel southPanel = new JPanel();
        southPanel.setLayout(new FlowLayout());
        southPanel.add(dater);
        southPanel.add(cart);
        southPanel.setBorder(new LineBorder(Color.BLACK,1));

        JPanel westPanel = new JPanel();
        westPanel.setLayout(new GridLayout(5,1));
        westPanel.add(category);
        westPanel.add(classic);
        westPanel.add(western);
        westPanel.add(pop);
        westPanel.add(jazz);
        westPanel.setBorder(new LineBorder(Color.BLACK,1));

        JPanel SubcenterPanel = new JPanel();
        gbl1 = new GridBagLayout();
        gbc1 = new GridBagConstraints();
        gbc1.anchor = GridBagConstraints.CENTER;
        SubcenterPanel.setLayout(gbl1);
        SubcenterPanel.setBorder(new LineBorder(Color.BLACK,1));

 

        gbc1.gridx=1;
        gbc1.gridy=2;
        gbc1.gridwidth=1;
        gbc1.gridheight=1;
        gbl1.setConstraints(check1,gbc1);
        SubcenterPanel.add(check1);


        gbc1.gridx=1;
        gbc1.gridy=3;
        gbc1.gridwidth=1;
        gbc1.gridheight=1;
        gbl1.setConstraints(check2,gbc1);
        SubcenterPanel.add(check2);


        gbc1.gridx=1;
        gbc1.gridy=4;
        gbc1.gridwidth=1;
        gbc1.gridheight=1;
        gbl1.setConstraints(check3,gbc1);
        SubcenterPanel.add(check3);


        gbc1.gridx=1;
        gbc1.gridy=5;
        gbc1.gridwidth=1;
        gbc1.gridheight=1;
        gbl1.setConstraints(check4,gbc1);
        SubcenterPanel.add(check4);


        gbc1.gridx=2;
        gbc1.gridy=2;
        gbc1.gridwidth=2;
        gbc1.gridheight=2;
        gbl1.setConstraints(image,gbc1);
        SubcenterPanel.add(image);

        JPanel centerPanel = new JPanel();
        centerPanel.setLayout(new GridLayout(2,1));
        centerPanel.add(listOfCd);
        centerPanel.add(SubcenterPanel);

        JPanel mainPanel = (JPanel)getContentPane();
        mainPanel.setLayout(new BorderLayout());
        mainPanel.add(northPanel,"North");
        mainPanel.add(southPanel,"South");
        mainPanel.add(centerPanel,"Center");
        mainPanel.add(westPanel,"West");
    }

   class forTime extends Thread implements ActionListener
    {

        public void actionPerformed(ActionEvent ae)
        {

        Date date1 = new Date();
        SimpleDateFormat format1 = new SimpleDateFormat("HH:mm:ss");
        String out = format1.format(date1);
        dater.setText("The time is: "+out);

         String path = "C:/javay/User.txt";
         String data;
         BufferedReader inputStream = null;



        try {
            inputStream =
                new BufferedReader(new FileReader(path));


            while ((data = inputStream.readLine()) != null)
            {

                System.out.println(data);
            }



            if(inputStream==null)
            {
                inputStream.close();
            }
        }

      catch(IOException e)
        {
	JOptionPane.showMessageDialog(null,"Error Reading the file");
        }

         }
    }


    public static void main(String[]args)
    {
        musicOnWeb m = new musicOnWeb("Music On Web");
        m.setVisible(true);
        m.setSize(500,500);
        m.validate();
        m.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

Please help

[Yohan Weerasinghe]

Please help me....

[Rob Spoor]

Try doing a full rebuild from your IDE. I copy-pasted your code and without modifying it, it compiled just fine.

Now, how did I know you're using an IDE? Because you can't run uncompiled code from the command line. IDE's like Eclipse allow you to run uncompilable code, but in 99% of the cases it won't run. That's why I give the following advice most times I see this problem occur: always fix all your compiler errors before running any application.

Oh, and

Yohan Weerasinghe wrote:Please help me....

PatienceIsAVirtue.

[Tom Reilly]

I googled your error and many of the items returned referred to NetBeans. Is that what you are using? One of them said try a build clean.

BTW, you have a bug at line 184. Do you see it?

[Yohan Weerasinghe]

Thanks for all of your replies. It is not compiling fine in command line....This is the whole error I am getting using NetBeans

run:
Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: Uncompilable source code - cannot find symbol
symbol: constructor FileReader(java.lang.String)
location: class FileReader
at musicOnWeb$forTime.actionPerformed(musicOnWeb.java:172)
at javax.swing.Timer.fireActionPerformed(Timer.java:271)
at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
BUILD SUCCESSFUL (total time: 5 seconds)

[Yohan Weerasinghe]

OK, that compile fine in CMD. I had some kind of error in JAVA installation or something. After restarting the machine, it worked fine in cmd as the Moderator said. But it still giving errors in NetBeans.

here is the error

run:
Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: Uncompilable source code - cannot find symbol
symbol: constructor FileReader(java.lang.String)
location: class FileReader
at musicOnWeb$forTime.actionPerformed(musicOnWeb.java:172)
at javax.swing.Timer.fireActionPerformed(Timer.java:271)
at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
BUILD SUCCESSFUL (total time: 6 seconds)

Apart from that, when I run that in CMD, It is giving the output for each and every second!

[Yohan Weerasinghe]

Help me please

[Yohan Weerasinghe]

Finally, solved. That is netbeans, not me!!! Anyway, having this error in netbeans is really annoying. How could I solve that?

[Rob Spoor]

Have you already done a full rebuild as I already suggested 4 hours ago?

Yohan Weerasinghe wrote:Help me please

I already posted the PatienceIsAVirtue FAQ entry after a one-hour bump. Do you really think that a 15-minutes bump is not getting the same response?

[Yohan Weerasinghe]

Rob Spoor wrote:Have you already done a full rebuild as I already suggested 4 hours ago?

I am not good in IDE's. I use IDE just for good alignments and for easy error handling and that's it. I have one project called "project1" and all the java files related to different different programs are there. What I did is this " RUN > Clean and Build. I hope I didn't do the correct thing, because it didn't solve the matter.

I already posted the PatienceIsAVirtue FAQ entry after a one-hour bump. Do you really think that a 15-minutes bump is not getting the same response?

Sorry for that. Yesterday my head was like a crow nest, because you said that is working fine, in my case netbeans shows errors, CMD shows "FileNotFound" .....I had to replace the file into another location then only it worked fine in CMD

[Yohan Weerasinghe]

I have opened a seperate project called "musicOnWeb". This works completely fine in there. Thanks all of you for your help. I really appreciate all of your help. Thanks again. Marking this thread as solved...

PS: I need to ask a question about this web site. In which section I could post my question?

[Rob Spoor]

Use the Ranch Office forum for that.

[Yohan Weerasinghe]

Rob Spoor wrote:Use the Ranch Office forum for that.

Thank you...