under Notes of Programming
问题描述抗疫过程中政府、组织、企业和个人分别在做什么。要求：定义接口ResistanceToDisease,接口提供doSomething方法；分别定义Government、Organization、Enterprise和People类实现接口ResistanceToDisease；根据需要再...
under Notes of Programming
问题描述设计名为Person的类和它的两个子类Student和Employee。Employee有子类Faculty和Staff。Person有name,address,telephone,emailStudent有grade(4个年级，定义为enum)Employee有officer,sal...