京东美团Java-阿里云

远程面试阿里、蚂蚁、京东、美团后整理份283页Java核心面试宝典

本文整理了一些面试时面试官必问的知识点，其中包括了有基础知识、Java集合、JVM、多线程并发、spring原理、微服务、Netty 与RPC 、Kafka、日记、设计模式、Java算法、数据库、Zookeeper、分布式缓存、数据结构等等。由于知识点比较全面，内容比较多，所以我将这些Java面试中...

远程面试阿里、蚂蚁、京东、美团后整理份283页Java核心面试宝典

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2.图灵学院-----阿里/京东/滴滴/美团整理----高频JAVA网络/IO篇

一、TCP和UDP有什么区别？TCP为什么是三次握手，而不是两次？TCP Transfer Control Protocol 是一种面向连接的、可靠的、传输层通信协议。特点：好比是打电话：面向连接的，点对点的通信，高可靠的，效率比较低，占用的系统资源比较多。UDP Us...

1.图灵学院-----阿里/京东/滴滴/美团整理----高频JAVA并发篇

一、JAVA如何开启线程？怎么保证线程安全？线程和进程的区别：进程是操作系统进行资源分配的最小单元。线程是操作系统进行任务分配的最小单元，线程隶属于进程。如何开启线程？1、继承Thread类，重写run方法。2、实现Runnable接口，实现run方法。3、实现Callable接口，实...

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