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Reading the contents of JTextArea

  Asked By: Kenneth    Date: Feb 21    Category: Java    Views: 1111
  

I know that you can I assign a DocumentListener and an ActionListener
to a JTextArea.

I know there are standard methods that must be defined when you
implement document listener.

I want to be able to make a scrollable panel that has a large text
area that I can redirect STDOUT and STDERR and read text typed into
this JPanel.

I saw an example that used PipedStreams for STDOUT and STDERR and
made them threads but it has to be an easier way to "print" those
streams to a JPanel without making them PipedStreams.

Any suggestions?

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3 Answers Found

 
Answer #1    Answered By: Alan Palmer     Answered On: Feb 21

Go to:

cvs.sourceforge.net/.../anthonyed\
en/lib/io/JTextAreaWriter.java?rev=1.4&content-type=text/vnd.viewcvs-markup

for an example  of a class which implements a Writer where all data sent to the
writer gets inserted into a JTextArea. You could apply the concepts within to
create a PrintStream instead and then use System.setOut() and System.setErr() to
force it to use your PrintStream instead.

Is this what you want or did I misunderstand your question?

 
Answer #2    Answered By: Guadalupe Rogers     Answered On: Feb 21

No thats what I want to do but I want all streams STDOUT, STDERR and
STDIN.

I know the first two are easily done.

The last is the tricky one.

I will go to the link you gave me and check it out.

 
Answer #3    Answered By: Gustavo Taylor     Answered On: Feb 21

As far as I know there is no easy way that I know of to read  STDIN and have the
data written to the JTextArea other than with PipedStreams.

 
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