Need to wait for answer

Question

In the following code, my get.start(); lines, opens another jframe that is used to accept values from the user. There are 2 textfields on the jframe that the user is entering information into. However, once the get.start(); is called, the function proceeds on with itself, and doesn't wait for an answer from the jframe, which is something I understand and know, but my issue is, getting it to wait for the user to input information. I'm not sure what I can do to wait for the information before my code goes through and runs the if(goahead){.... code. 
  public void uploadFile(){
        //   patronObject patron = new patronObject();
        boolean goahead = true;
        getInfo get = new getInfo();
        int result = filechooser.showOpenDialog(this);
        if (result == filechooser.APPROVE_OPTION){
            String filename = filechooser.getSelectedFile().getAbsolutePath();
            System.out.println("filename = " + filename);
            if (filename.toLowerCase().endsWith(".pdf") || filename.toLowerCase().endsWith(".PDF")){
                try {
                    System.out.println("filename in uploadFILE = " + filename);
                    FileInputStream input = new FileInputStream(new File(filename));
                    ByteArrayOutputStream output = new ByteArrayOutputStream();
                    byte[] buf = new byte[1024];
                    byte[] data = null;
                    long num = 0;
                    int numBytesRead = 0;
                    while ((numBytesRead = input.read(buf)) != -1) {
                        output.write(buf, 0, numBytesRead);
                    get.start();
                    if(goahead){
                        //   patronObject patron = new patronObject();
                        System.out.println("go to the printing section");
                        patron.setAction("updatePDF");
                        patron.setPatronID(get.getPatronID());
                        patron.setPDFName(get.getPdfName());
                        patron.setPDF(output.toByteArray());
                        sendPatron();
                }catch(FileNotFoundException ex) {
                    ex.printStackTrace();
                } catch (IOException ex) {
                    ex.printStackTrace();
            }else{
                JOptionPane.showMessageDialog(null, "Please make sure to select only a PDF file");
    }

Answer 1

Use a modal JDialog or JOptionPane.showInputdialog(...) instead of JFrame.
In future, Swing questions should be posted in the [Swing forum|http://forum.java.sun.com/forum.jspa?forumID=57]
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