Log4J ?

[Kenny Ma]

Can anyone tell me how to use Log4J ?

the sample is
    cat.debug("Hello world.");
    cat.info("What a beatiful day.");

so, what is the different if i use
System.err.println("Hello world."); ???

Both are output to standout...

How to use Log4J more easy ? Thanks


/* Kenny Ma
   [EMAIL PROTECTED] */