package Ġcc . jian min hu ang . day 8 . ext Ċ Ċ import Ġorg . slf 4 j . Logger Ċ import Ġorg . slf 4 j . LoggerFactory . getLogger Ċ Ċ interface ĠLogging Ġ{ ĊĊĠĠĠ Ġfun Ġ< T Ġ: ĠLogging > ĠT . logger (): ĠLogger Ġ= Ġget Logger ( java Class ) Ċ }