The simplest log4 demo program in the world

First download the package required by log4.

Write countProgramRun it. The principle is not to mention, there are a lot of online.

Package untitled9;

Import org. Apache. log4j .*;

Public class testlog4j {
Static logger log = logger. getlogger (testlog4j. Class. getname ());
Public static void main (string ARGs []) {
Basicconfigurator. Configure ();
// Logging methods
Log. debug ("Start of main ()");
Log.info ("just testing a log message with priority set to Info ");
Log. Warn ("just testing a log message with priority set to warn ");
Log. Error ("just testing a log message with priority set to error ");
Log. Fatal ("just testing a log message with priority set to fatal ");
// Another inconvenient format
Log. Log (priority. debug, "testing a log message use a alternate form ");
Log. debug ("End of main ().");
}
}