system to status window in applet

Newbie & Debugging Questions
#1

is there a way to send the

System.out.println(); to a status window or a text area… using

import javax.swing.JTextArea

???

#2

Instead of using System.out.println() you could just use JTextArea.append(), unless I am misunderstanding youe question.

CaseyB

#3

Is it possible to use System.setOut() in an applet?

#4

No to my knowledge you cannot just point a stream at a text area. You can redirect out to a differnt stream but you would have write your own stream type to
take the stramed input and draw it to a text window.

Most browsers however have a console you can turn on that will ctach all Java output if your just trying to see your errors.

#5

Yup yup … here is what I have

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.applet.Applet;
import javax.swing.JTextArea;

in my main class

private JTextArea status = null;

then later on i have

private void setupStatus( JTextArea ta ) {
// Setup Status Area.
setupStatus( status );

  // -------- JTextArea status --------
  if ( null == ta ) {
     status = new StatusArea( 5, 20 );
  }
  else {
     status = ta;
  }

  // JScrollPane pane = new JScrollPane();
  // pane.setVerticalScrollBarPolicy( JScrollPane.VERTICAL_SCROLLBAR_ALWAYS
  // );
  // pane.setHorizontalScrollBarPolicy(
  // JScrollPane.HORIZONTAL_SCROLLBAR_NEVER );
  //
  // pane.getViewport().add( status );
  // this.add( pane );

}

And then the seperate StatusArea Class

import java.awt.Color;
import javax.swing.JTextArea;

then later on

public class StatusArea extends JTextArea {

public StatusArea(int rows, int columns) {
super( rows, columns );
setBackground( new Color( 255, 255, 203 ) );
setEditable( false );
setLineWrap( true );
setWrapStyleWord( true );
}

// Overwriting the default Append class such that it scrolls to the
// bottom of the text. The JFC doesn’t always rememeber to do that.
public void append( String str ) {
super.append( str );
setCaretPosition( getText().length() );
}
}

now i just need to be able to put my text in there.

Which i am having trouble doing

#6

If I understand what you are trying to get at, then it should be like this:

try
{
    soemthing;
}
catch(SomeException e)
{
    status.append(e.toString());
}

or if at some point you would do a

System.out.println(someIntVariable);

just change it to

status.append(Integer.toString(someIntVariable));

CaseyB

#7

What’s the point of that setupStatus( status ); method call in the beginning of setupStatus? Doesn’t that just keep on calling setupStatus indefinitely (and cause a StackOverflowError)?

#8

Well funny thing is that it actually did. This has since been removed as I relized this and was calling it further up in my code :slight_smile:

The joys of learning :slight_smile: