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interview's Issues

README

java目录下面的泛型的泛写错了= =

索引问题请教

https://hadyang.github.io/interview/docs/basic/database/mysql/innodb/index/

这篇文章中的,User Records 就是整个页面中真正用于存放行记录的部分,而 Free Space 就是空余空间了,它是一个链表的数据结构,为了保证插入和删除的效率,整个页面并不会按照主键顺序对所有记录进行排序,它会自动从左侧向右寻找空白节点进行插入,行记录在物理存储上并不是按照顺序的,它们之间的顺序是由 next_record 这一指针控制的。
这段话说的记录不一定是顺序的,但
B+ 树的叶子节点存放所有指向关键字的指针,节点内部关键字记录和节点之间都根据关键字的大小排列。当顺序递增插入的时候,只有最后一个节点会在满掉的时候引起索引分裂,此时无需移动记录,只需创建一个新的节点即可。而当非递增插入的时候,会使得旧的节点分裂,还可能伴随移动记录,以便使得新数据能够插入其中。 ,对这两个知识点,不太理解,请问一下这两个点

关于Java OOP中的重写 我不太理解

注意:

不能重写static静态方法。(形式上可以写,但本质上不是重写,属于下面要讲的隐藏)

重写方法可以改变其它的方法修饰符,如final,synchronized,native。
不管被重写方法中有无final修饰的参数,重写方法都可以增加、保留、去掉这个参数的 final 修饰符(参数修饰符不属于方法签名)。

重写方法可以改变其它的方法修饰符,如final,synchronized,native。final修饰的方法也能重写吗?

转载需求

你好,看了你的面试信息整理后,觉得很不错,希望一些篇幅能够搬到我个人公账号好,请问是否允许,转载会标明出处的。

跳转问题

请问有没有人来维护一下啊, 跳转总是出现问题,而且内容很多需要更新补充了的

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