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Java 面试宝典 9.0
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目录
一 Java 基础
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1.Java 基础 知识
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1.1 面向对象的特征（了解）
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1.2 Java 的基本数据类型有哪些（了解）
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1.3JDK JRE JVM 的区别 （必会）
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1.4 重载和重写的区别（必会）
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1.5 Java 中==和 equals 的区别（必会）
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1.6 String、StringBuffer、StringBuilder 三者之间的区别（必会）
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1.7 接口和抽象类的区别是什么？（必会）
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1.8 string 常用的方法有哪些？（了解）
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1.9 什么是单例模式？有几种？（必会）
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1.10 反射（了解）
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1.11 jdk1.8 的新特性（高薪常问）
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1.12 Java 的异常（必会）
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1.13 BIO、NIO、AIO 有什么区别？（高薪常问）
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1.14 Threadloal 的原理（高薪常问）
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1.16 同步锁、死锁、乐观锁、悲观锁 （高薪常问）
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1.17 说一下 synchronized 底层实现原理？（高薪常问）
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1.18 synchronized 和 volatile 的区别是什么？（高薪常问）
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1.19synchronized 和 Lock 有什么区别？ （高薪常问）
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1.20 手写冒泡排序？(必会)
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2.集合(必会)
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2.1 常见的数据结构（了解）
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2.2 集合和数组的区别（了解）
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2.3List 和 Map、Set 的区别（必会）
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2.4 List 和 Map、Set 的实现类（必会）
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2.5Hashmap 的底层原理（高薪常问）
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2.6 Hashmap 和 hashtable ConcurrentHashMap 区别（高薪常问）
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3.多线程(必会)
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3.1 什么是线程?线程和进程的区别?（了解）
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3.2 创建线程有几种方式（必会）
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3.3Runnable 和 Callable 的区别？（必会）
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3.4 如何启动一个新线程、调用 start 和 run 方法的区别？（必会）
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3.5 线程有哪几种状态以及各种状态之间的转换？(必会)
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3.6 线程相关的基本方法？（必会）
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3.7 wait()和 sleep()的区别？（必会）
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4. 线程池
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4.1 为什么需要线程池（了解）
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4.2 线程池的分类（高薪常问）
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4.3 核心参数（高薪常问）
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4.4 线程池的原理（高薪常问）
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4.5 拒绝策略（了解）
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4.6 线程池的关闭（了解）
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6. Jvm
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6.1 JDK1.8 JVM 运行时内存（高薪）
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6.2 JDK1.8 堆内存结构（高薪常问）
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6.3 Gc 垃圾回收（高薪常问）
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6.4 JVM 调优参数（了解）
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一、 Web
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1.网络通讯部分
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2.cookie 和 session 的区别？（必会）
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3.Jsp 和 Servlet（了解）
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4.Ajax 的介绍（必会）
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二、 数据库
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1.连接查询（必会）
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2.聚合函数（必会）
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3.SQL 关键字(必会)
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4. SQL Select 语句完整的执行顺序: (必会)
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5. 数据库三范式(必会)
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6. 存储引擎 （高薪常问）
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1.MyISAM 存储引擎
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2.InnoDB 存储引擎
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7.数据库事务（必会）
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8.索引
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9.数据库锁(高薪常问)
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1.行锁和表锁
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2.悲观锁和乐观锁
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10.MySql 优化(高薪常问)
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1) 定位执行效率慢的 sql 语句.(了解)
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2) 优化索引(高薪)
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3) Sql 语句调优(高薪)
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4) 合理的数据库设计(了解)
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四. 框架
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1. Mybatis 框架
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2. Spring 框架
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3.SpringMVC 框架
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4. Dubbo
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5. Zookeeper
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6.SpringBoot
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7. SpringCloud
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五.技术点
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1. Redis
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2. RocketMQ
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3. MongoDb
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4. Nginx
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5. FastDFS
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6. JWT
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六. 探花交友
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一、项目介绍
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1.1 开发技术
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1.2 技术架构
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1.3 开发方式
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二、功能介绍
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2.1 功能列表
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2.2 注册登录
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2.3 通用功能的实现
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2.4 今日佳人
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2.5 公告
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2.6 圈子
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2.7 小视频
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2.8 探花
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2.9 测试灵魂
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2.10 桃花传音
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七、黑马头条
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一、项目介绍
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1.1 项目背景
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1.2 项目概述
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1.3 需求说明
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1.4 功能架构图
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1.5 APP 主要功能大纲
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1.6 自媒体端功能大纲
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1.7 平台管理端功能大纲
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1.8 其它需求
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1.9 交互需求
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二．功能介绍
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2.1 admin 端
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2.2 app 端
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2.3 自媒体文章
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2.4 新热文章计算
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