有一个abstract类,类名为Employee_要求设计abstract类,类名为employee-CSDN博客1.要求有一个abstract类,类名为Employee。Employee的子类有YearWorker、MonthWorker和WeekWorker。YearWorker对象按年薪领取薪水,MonthWorker按月领取薪水,WeekWorker按周领取薪水。Employee类有一个abstract方法:Public abstract earnings();子类必须重...... admin2023-10-12