传统模式为:
try { // execute code that may throw 1 of the 3 exceptions below. } catch(SQLException e) { logger.log(e); } catch(IOException e) { logger.log(e); } catch(Exception e) { logger.severe(e); }java7中可以简写为:
try { // execute code that may throw 1 of the 3 exceptions below. } catch(SQLException | IOException e) { logger.log(e); } catch(Exception e) { logger.severe(e); }| 符合 可以 写多个,符合其中之一;