7-2 jmu-Java-03面向对象-06-继承覆盖综合练习-Person、Student、Employee、Company (20 分)(代码+解析)
定义Person抽象类,Student类、Company类,Employee类。Person类的属性:Stringname,intage,booleangenderPerson类的方法:publicPerson(Stringname,intage,booleangender);publicStringtoString();//返回"name-age-gender"格式的字符串publicboole