Java Logging

//new logging api in Java 1.4
import java.util.logging.*;


public class TestLogging {
    
    //set up a logger
    static Logger testLog = 
      Logger.getLogger("Fluffycat.TestLog");   


    public static void main(String[] args) {
        
       //test a warning log
       testLog.warning("sample warning");
       
       //test all priority levels to lowest
       //default will only show 
       //  SEVERE, WARNING, and INFO on your console
       testLog.log(Level.SEVERE, "severe log");   
       testLog.log(Level.WARNING, "warning log");
       testLog.log(Level.INFO, "info log");
       testLog.log(Level.CONFIG, "config log");
       testLog.log(Level.FINE, "fine log"); 
       testLog.log(Level.FINER, "finer log");
       testLog.log(Level.FINEST, "finest log");     
       testLog.log(Level.ALL, "all log");       
       
    }
}

May 14, 2002 10:33:18 AM TestLogging main
WARNING: sample warning
May 14, 2002 10:33:18 AM TestLogging main
SEVERE: severe log
May 14, 2002 10:33:18 AM TestLogging main
WARNING: warning log
May 14, 2002 10:33:18 AM TestLogging main
INFO: info log