HOw to create a console in a GUI??

Question

Hi,
i have redirectioned the java outoup to write in a file, it reacts perfectly to the system.out but when the new outpot becomes anything else as a printf nothing happens.
Anyone knows if it could be that the console is not "flusing" the messages.
all what i have tryed does not work and i am really desperado. So please it would be great any idea to solve the problem.
Here is what i have tryed, everything works with the system.out but not with the printf (maybe because the cmd is blocked??????) :
1.-
<code>
public static void main(String argh_my_aching_fingers[]){
final JTextArea textArea = new JTextArea(15, 40);
// Get the default system.out
final PrintStream sysOut = new PrintStream(System.out);
System.setOut(new PrintStream(new OutputStream() {
public void write(int b) throws IOException {
// write to the text area
textArea.append(String.valueOf((char)b));
// write to the default System.out
sysOut.write(b);
2.-
public static void main(String argh_my_aching_fingers[]){
try
// create a buffered reader that connects to the console, we use it so we can read lines
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
// read a line from the console
String lineFromInput = in.readLine();
// create an print writer for writing to a file
PrintWriter out = new PrintWriter(new FileWriter("myoutput.txt"));
// output to the file a line
out.println(lineFromInput);
// close the file (VERY IMPORTANT!)
out.close();
catch(IOException e)
System.out.println("Error during reading/writing");
the file only received the messages from the system.out
3.- the same, at least to write into a file everything but again failed.
<code>
// escribir en un archivo no funciona
try {
// Tee standard output
PrintStream out = new PrintStream(new FileOutputStream("out.log"));
PrintStream tee = new TeeStream(System.out, out);
System.setOut(tee);
// Tee standard error
PrintStream err = new PrintStream(new FileOutputStream("err.log"));
tee = new TeeStream(System.err, err);
System.setErr(tee);
} catch (FileNotFoundException e) {
// Write to standard output and error and the log files
System.out.println("welcome");
MainLogical logicalJava = new MainLogical();
logicalJava.GetIECRI1();// .GetInformationCommands();
System.out.println("bye");
<endcode>
NOTE / HINT:
that is the interface of the console:
<code>
//Make sure a nice window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("Ls test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(textArea,BorderLayout.CENTER);
frame.setSize(100,100);//setExtendedState(MAXIMIZED_BOTH);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
<endcode>
It would be super if anyone who face with this, could help me
Thanks.

Answer 1

Hi
i think i found teh problem of the communication.
My problem I think is that the Fortran and c libraries are filling the System.err output and waiting for the system to empty it.
When launched from a CMD shell it was OK, when launched from a java Runtime.Exec it was blocking.
Anyone knows how to force it to empty it??
Thanks