* Using Date, Calendar and existing date-related APIs can be error-prone, painful and tedious. * The complexities of accurate timekeeping are beyond your imagine. * What do you need? Computer-related times or human-related times? * Need to manipulate dates and times? Using Joda-Time or JSR310 to make it easy! 你可以在以下鏈結找到中文介紹: http://www.codedata.com.tw/java/jodatime-jsr310-1-date-calendar/