Working with String value in Build/Ant file in Java

Question

I am unable to find the solution of working with String values in ant/build file. I have 2 values in 2 text field in java project. I need to pick up those two string (text fields) values to the build file.

Example:-

java.io.InputStream inputStream = process.getInputStream() ;
                InputStreamReader inputstreamreader = new InputStreamReader(inputStream);
                BufferedReader bufferedrReader = new BufferedReader(inputstreamreader);
                String strLine = "";
                int length = strLine.length();
                progressBar.setMaximum(100);
                length=progressBar.getValue();

                while ((strLine = bufferedrReader.readLine()) != null) {
                    System.out.println(strLine);
                    System.setErr(System.out);
                    String newline = "\n";
                    textArea.append(strLine+newline);
                    textArea.setCaretPosition(textArea.SCROLLBARS_VERTICAL_ONLY);
                    length++;

I have this code with a string. Where is this string value is stored so that i can use its value in ant file.

EDITED

FileNameExtensionFilter filter = new FileNameExtensionFilter("Text Files","txt");
                JFileChooser fileChooser = new JFileChooser();
                fileChooser.setDialogTitle("Choose");
                fileChooser.setFileFilter(filter);

                // For Directory
                fileChooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);

                int rVal  = fileChooser.showOpenDialog(null);
                if (rVal == JFileChooser.APPROVE_OPTION) {
                  textFieldChoose.setText(fileChooser.getSelectedFile().toString());
                    String str="";

                  final JFrame msgframe= new JFrame();
                  msgframe.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                  str= textFieldChoose.getText();
                  JOptionPane.showMessageDialog(textFieldChoose, str);

I want to read the value of String str=""; outside any text file from where I can use it in my build file. str is the path value of the selected file "?

Answer 1

Here:

 textArea.append(strLine+newline);

It looks like the code is appending the file content line by line to a JTextArea (or worse, an old AWT TextArea).

In any case, your code is simply updating an UI element.

In other words: all you got is already there. Just dont append the text read from the files to that UI component, but make it available to your ANT task!