Log Java Tutorial

Logger Level Description
SEVEREHighest logging level. This has top priority.
WARNINGOne level below severe. For warning messages that need attention, but aren't serious.
INFOTwo levels below severe. For informational messages.
CONFIGThree levels below severe. For configuration-related output.
FINEFour levels below severe. For program tracing information.
FINERFive levels below severe. For program tracing information.
FINESTLowest logging level. This has lowest priority.
ALLSpecial level that makes the system log ALL messages.
OFFSpecial level that makes the system log NO messages (turns logging off completely).