Should be easy, but need help.

[Rob Levo]

Need to write the result of printStackTrace method of the Exception class to a file.
Can someone provide an example. I am getting confused on what I/O classes to use.
Thanks,
Rob

[Jim Yingst]

    PrintStream printer = new PrintStream(new FileOutputStream("file.txt"));
    ex.printStackTrace(printer);

or

    PrintWriter printer = new PrintWriter (new FileWriter("file.txt"));
    ex.printStackTrace(printer);

If you wish to do anything with the stack trace other than write it to a file, you can convert it to a String:

    StringWriter sw = new StringWriter();
    PrintWriter printer = new PrintWriter (sw);
    ex.printStackTrace(printer);
    String stackTrace = sw.toString();

And if you're using 1.4 (and why not?) you can use other methods:

    StackTraceElement[] elements = ex.getStackTrace();
    for (int i = 0; i < elements.length; i++)
    {
        StackTraceElement element = elements[i];
        System.out.println(element);
    }

[Rob Levo]

Originally posted by Jim Yingst:

    PrintStream printer = new PrintStream(new FileOutputStream("file.txt"));
    ex.printStackTrace(printer);

or

    PrintWriter printer = new PrintWriter (new FileWriter("file.txt"));
    ex.printStackTrace(printer);

If you wish to do anything with the stack trace other than write it to a file, you can convert it to a String:

    StringWriter sw = new StringWriter();
    PrintWriter printer = new PrintWriter (sw);
    ex.printStackTrace(printer);
    String stackTrace = sw.toString();

And if you're using 1.4 (and why not?) you can use other methods:

    StackTraceElement[] elements = ex.getStackTrace();
    for (int i = 0; i < elements.length; i++)
    {
        StackTraceElement element = elements[i];
        System.out.println(element);
    }

Thanks for your quick and comprehensive reply that includes the 1.4 fuctionality.
Take care,
Rob