JackyXuAtTech的博客

为备考学校最后一次CS考试，对错题在此小作总结： Analyzing algorithm efficiency using Big-O is to estimate their growth function ( incorrect answer: to estimate their execution time) default method in the interface can b...

今天在学校上复习课，TA回顾了抽象类的用法，其中有几个重要的知识点之前自己不太懂的，稍微记录一下： Once we declare a generic class with type T, we can use instanceof to check if variables are of this type False 关于我们是否可以用instanceof来检测变量的数据类型，答...