How to initialize log4j properly?

Question

After adding log4j to my application I get the following output every time I execute my application:

log4j:WARN No appenders could be found for logger (slideselec         


        

Answer 1

While setting up log4j properly is great for "real" projects you might want a quick-and-dirty solution, e.g. if you're just testing a new library.

If so a call to the static method

org.apache.log4j.BasicConfigurator.configure();

will setup basic logging to the console, and the error messages will be gone.