Redirecting stdOut to a JTextArea - Help!

Question

I want to redirect stdOut via System.setOut to a JTextArea - I'm most of the way there but I keep getting some strange errors. I'd really appreciate some help!
I have a class called MainDebug which in its constructor calls
System.setOut(new DebugStream((OutputStream)System.out));
it also has a method
public void appendMessage(String message)
txtAreaDebug.append(message);
where txtAreaDebug is the JTextArea to which I want to redirect stdOut.
In MainDebug is another class called DebugStream (which is referred to in MainDebug's constructor). The entirety of that class is as follows:
public class DebugStream extends java.io.PrintStream
public void println(String x)
MainDebug.this.appendMessage(x);
public void write(int x)
MainDebug.this.appendMessage(new Integer(x).toString());
When I build I get these errors:
pcgen\gui\MainDebug.java:63: cannot resolve symbol
symbol : constructor DebugStream (java.io.OutputStream)
location: class pcgen.gui.MainDebug.DebugStream
System.setOut(new DebugStream((OutputStream)System.out));
^
pcgen\gui\MainDebug.java:166: cannot resolve symbol
symbol : constructor PrintStream ()
location: class java.io.PrintStream
public class DebugStream extends java.io.PrintStream
For the first error, shouldn't DebugStream inherit the proper constructor from PrintStream? And I have no clue about the second error - I believe I've extended the class correctly.
Pearls of wisdom appreciated! :)

Answer 1

Constructors aren't inherited from superclasses, so you'll need to supply your own constructor for DebugStream.
FWIW, I've done this before and here's my version of DebugStream:
   private class MyPrintStream extends PrintStream
      public MyPrintStream(OutputStream pOut)
         super(pOut);
      public void println(String pString) {
         if (mResultsPanel != null)
            mResultsPanel.append(pString);
         super.println(pString);
      public void println(Object pObject)
         if (mResultsPanel != null)
            mResultsPanel.append(pObject.toString());
         super.println(pObject);
   }where mResultsPanel has a reference to the JTextArea.
Good luck,
Tom