java – jFileChooser. Showopendialog() freezes the application No errors / exceptions A few things
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Java
I'm in NetBeans 6.9 1, because I have a "Browse" button, it should open an open dialog box on Jfilechooser Very similar question on stackoverflow
My problem is the same. I tried to set the current directory, which tried another similar problem on stackoverflow, but even then it can't run on my PC
I still can't figure out what my mistake is I think it's the same mistake that things don't run on EDT I use NetBeans and the code is very large I can't find out where to change EDT So I only publish the relevant parts of it Please look and tell me how to solve my problem?
private void cmdBrowseActionPerformed(java.awt.event.ActionEvent evt) { jFileChooser1.setCurrentDirectory(new File("F:/BE-Project/Summarizer")); jFileChooser1.setDialogTitle("Open File"); jFileChooser1.setFileSelectionMode(JFileChooser.FILES_ONLY); int returnVal = jFileChooser1.showOpenDialog(Summarizer.this); if (returnVal== JFileChooser.APPROVE_OPTION) { try { fin = jFileChooser1.getSelectedFile(); fileContents = Files.readFromFile(fin,"ISO-8859-1"); tAreafileContents.setText( fileContents ); txtInputFile.setText( fin.getAbsolutePath() + " -- " + fin.getName()); tAreafileContents.setCaretPosition(tAreafileContents.getDocument().getLength()); } catch (Exception e) { System.out.println(e); } } else System.out.println("there is some error"); } /* netbeans generated code */ public static void main(String args[]) { java.awt.EventQueue.invokelater(new Runnable() { public void run() { new Summarizer().setVisible(true); } }); }
Please tell me if I need any other code parts, please help I'm scratching my head now
Solution
I suggest that your problem is to read files from disk in EDT
//this should be in a worker thread fileContents = Files.readFromFile(fin,"ISO-8859-1"); //this then gets dumped back on the EDT tAreafileContents.setText( fileContents ); txtInputFile.setText( fin.getAbsolutePath() + " -- " + fin.getName()); tAreafileContents.setCaretPosition(tAreafileContents.getDocument().getLength());
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