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查询Tags标签： SportsStudent，共有 2条记录-
java封装继承与多态
封装：setter,getter；String subject;public String getSubject() {return subject;}public void setSubject(String subject) {this.subject = subject;} 继承：子类继承父类，用extends关键字；public class SportsStudent extends Student implements CanDo多态：抽象…
2022/1/13 17:04:12 人评论 次浏览 -
java封装继承与多态
封装：setter,getter；String subject;public String getSubject() {return subject;}public void setSubject(String subject) {this.subject = subject;} 继承：子类继承父类，用extends关键字；public class SportsStudent extends Student implements CanDo多态：抽象…
2022/1/13 17:04:12 人评论 次浏览
