https://blog.guwendaquan.com/ 2026-04-13T17:32:54+00:00 https://blog.guwendaquan.com/ https://blog.guwendaquan.com/ttps://blog.guwendaquan.com/lib/tpl/twentyfifteen/images/favicon.ico text/html 2022-09-13T23:18:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/cache?rev=1663082317&do=diff 缓存 ---------- 参考 " <https://blog.csdn.net/zhengzhaoyang122/article/details/82184029> " text/html 2022-09-13T23:19:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/linknode?rev=1663082342&do=diff 链表元素删除 题目： 删除单链表中的元素 解答： package com.interview.meicai; public class ListNode { int val; ListNode next; public ListNode(int val){ this.val = val; } public static void main(String[] args) { ListNode listNode = new ListNode(1); listNode.next = new ListNode(2); } } // 删除链表指定元素 class Solution{ public ListNode removeElements(ListNode head, int val){ ListNode prevNode = head; ListNode current = head; while (current… text/html 2022-09-13T23:19:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/question_01?rev=1663082369&do=diff 面试题-01 一、数据结构与算法基础 * 说一下常见的几种排序算法和分别的时间复杂度 * LRU算法，slab分配，如何减少内存碎片 * 描述一下链式存储结构 二、Java基础 * 接口与抽象类的区别 text/html 2022-09-13T23:19:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/reference?rev=1663082398&do=diff 架构师面试参考 千万级规模高性能、高并发的网络架构经验分享 " <https://www.jianshu.com/p/e1a37b82d168>" TPS和QPS 并发量区别；日活 访问量 活跃度 " <https://www.cnblogs.com/sharesdk/p/10309408.html>" 面试总被问高并发，你真的会么？ " <https://blog.csdn.net/weixin_44460333/article/details/87927500>" Java整体知识架构详解-之分布式架构 text/html 2022-09-13T23:20:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/score_avg?rev=1663082424&do=diff 数据库表设计和SQL 题目： 设计数据库表，用来存放学生信息、课程信息、学生的课程及成绩，并给出SQL语句，查询平均成绩大于85的所有学生。 解答： CREATE DATABASE interview; CREATE TABLE class ( cls_id VARCHAR(30) PRIMARY KEY, cls_name VARCHAR(30) ); CREATE TABLE student ( std_id VARCHAR(30) PRIMARY KEY, cls_id VARCHAR(30), std_name VARCHAR(30), CONSTRAINT cls_id_fk1 FOREIGN KEY(cls_id) REFERENCES class(cls_id) ); CREATE TABLE timetable ( t_id VARCHAR(30) PRIMARY KEY, t_name VARCHAR(30) ); CREATE TABLE score ( s_id VARCHAR(30), std_id VARCHAR(30), t_id VAR… text/html 2022-09-13T23:20:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://blog.guwendaquan.com/notes/tech_log/java/knowledge/interview/singleton?rev=1663082447&do=diff 设计线程安全的单例模式 题目： 实现lazy-init的单例类，要保证线程安全。 解答： package com.interview.pattern.singleton; public class SingletonDemo { private static volatile SingletonDemo instance; private SingletonDemo(){ } public static SingletonDemo getInstance(){ if(instance == null){ synchronized(SingletonDemo.class){ if(instance == null){ instance = new SingletonDemo(); } } } return instance; } …