FileInputStream Problems.

[bayan]

How can I get a FileNotFoundException when Im using a JFileChooser to get the file path. The file is instantiated fine but the inputStream gives the exception.

[Fubarable]

You're doing something wrong, but without code, I'm not sure how we can know why. Please read my signature link about creating and posting an SSCCE.

[bayan]

private void initComponents(){

        
        MenuItem Open = new MenuItem("فتح ملف");
        MenuItem Exit = new MenuItem("خروج");
        Menu File = new Menu("ملف");
        Menu Edit = new Menu("تعديل");
        File.add(Open);
        File.add(Exit);
        Open.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e){OpenFileDialog dialog = new OpenFileDialog();
        javax.swing.JOptionPane.showMessageDialog(dialog, "File Opened");
        File file = dialog.chosenFile;
        FileInputStream stream = new FileInputStream(file);// error here

        GasWaterRecordsProcessor processor = new GasWaterRecordsProcessor(stream);
        gwpanel.flipPage(0);}
        });

        Exit.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e){System.exit(0);}
        });

       MenuBar bar = new MenuBar();
       bar.add(File);
       bar.add(Edit);
       super.setMenuBar(bar);
       Container pane = super.getContentPane();
       JTabbedPane tabs = new JTabbedPane();
       tabs.add(gwpanel, "الغاز والمياه");
       pane.add(tabs);
       super.setSize(800,470);
       super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Really not much to see

[Fubarable]

Most of us do better with an SSCCE. Again, I urge you to read the link. Also helps if we can see the actual error messages.

Luck!

[bayan]

I really dont know how much more to tell you. I practically copy pasted from a guide

[Fubarable]

I really dont know how much more to tell you. I practically copy pasted from a guide

I understand, and what you've posted may be enough for some here to help you, but me, I'm not smart enough, and I do much better if you produce an SSCCE, a small program that we can compile, run, and see your problem first hand, that has no code present unrelated to your problem, and that we can modify to hopefully find a solution. So if no one smarter posts a simple solution, then please read the link. Here it is again:
SSCCE.

Much luck!

[bayan]

Oh its a program... I thought it was that how to write a question guide
Hold on..

[JosAH]

What happens when you do this:

FileInputStream stream = new FileInputStream(file.getAbsolutePath());

kind regards,

Jos

[bayan]

Same error: Unreported error at java.io.FileNotFoundException

[JosAH]

Same error: Unreported error at java.io.FileNotFoundException

... then you should print out the details for the selected File and see what happens; (the scenario works for me).

kind regards,

Jos

[bayan]

Thanks Jos ill try that ill let you know

[bayan]

Entering the pathname manually renders no exception. only with JFileChooser it does

[Norm]

If you can execute the program in a command prompt, you could copy the full contents of the screen here.
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

[JosAH]

Entering the pathname manually renders no exception. only with JFileChooser it does

What does getAbsolutePath() return on the returned File? Are they the same?

kind regards,

Jos

[bayan]

Im using netbeans ide i dont know i i can use command prompt

@Jos Yes they are identical. I tried the absolute filepath and the relative non worked.

[JosAH]

@Jos Yes they are identical. I tried the absolute filepath and the relative non worked.

That's a bit of an ambiguous remark: did the absolute path work for you? If so, see my first reply in this thread.

kind regards,

Jos

[bayan]

I saw somewhere that it might be open in another process thats why, but i cant see the process, thats why i came here. Anyway thanks for the help guys really appreciate it

[Tolls]

How are you handling the FileNotFoundException?
I see no try/catch in your code.
There's usually more information than just the exception name.

For example this code:

public class Scratch {

    public static void main (String[] args) {
        File f= new File("C:/blah.blh");
        FileReader fr = null;
        try {
            fr = new FileReader(f);
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        } finally {
            if (fr != null) {
                try {
                    fr.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

gives me this stack trace, which tells me the file name it has attempted to find:

java.io.FileNotFoundException: C:\blah.blh (The system cannot find the file specified)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(FileInputStream.java:106)
	at java.io.FileReader.<init>(FileReader.java:55)
	at Scratch.main(Scratch.java:25)

[bayan]

Amazingly it worked. I wanted to avoid try catch because variables in the statement cannot be read outside it. I encapsulated the entire block with try catch and it worked thanks a lot :).

Now to find something that reads arabic excel files.......

For those of you who dont know poi and JExcel support foreign characters only, not orientations. If an excel document was created with an arabic version for excel for example it will give an unreported error in IOException.