GUI - Displaying system.out

Question

Hello
I am creating a database application in Java. When an user enters an invalid query several of my class-methods call the System.out.println method. I was wondering if there was an easy way of redirecting all these print statements to a JTextArea in my JFrame(GUI)-to act like a small debug window :s
Any suggestions would be greatly appreciated

Answer 1

I answered something like this before
try here: http://forum.java.sun.com/thread.jsp?forum=31&thread=403289&message=1762839#1762839
Basically what you have to do is:public class JTextAreaWriter extends Writer
  protected JTextArea writeTo;
  public JTextAreaWriter(JTextArea writeTo)
    if (writeTo == null) throw new NullPointerException();
    this.writeTo = writeTo;
  public void close() {}
  public void flush() {}
  public void write(char[] cbuf)
    writeTo.append(new String(cbuf));
  public void write(char[] cbuf, int off, int len)
    writeTo.append(new String(cbuf, off, len));
  public void write(int c)
    writeTo.append((char)c + "");
  public void write(String str)
    writeTo.append(str);
  public void write(String str, int ofs, int len)
    writeTo.append(str.substring(ofs, ofs + len));
System.setOut(new PrintWriter(new JTextAreaWriter(myJTextArea)));You can also use System.setErr in the same way, with a different JTextArea
HTH
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Phlip