侃侃面试那些事儿:面试知识点梳理

侃侃面试那些事儿:面试知识点梳理

语言知识点:以java为例

  1. Java 语言特性:Java 与 c ++ 区别; abstract class vs interface; shallow copy/deep copy; pass by reference/ pass by value; hashcode()/ equals(); Java 一些关键字:final, static; final/finalize/finally; checked/unchecked exception; java 8种primitive type;overriding vs overload;public static void main(string args[])每个关键字的作用

  2. Java Collections:stack/queue/deque; hashset/treeset; String vs StringBuffer;Hashmap/TreeMap/Hashtable/LinkedHashMap/ ConcurrentHashMap; Array/ArrayList/LinkedList; PriorityQueue(heap); comparable/comparator; iterator

3. 拓展一些问题: Java memory leak/JVM/ garbage collection, Object class method: getclass()/ hashcode(); java: heap/stack存什么; Java 8/Java 7

数据结构和算法

  1. 二叉树:超级重点: 收集所有二叉树的题

  2. 链表: 会翻转/快慢指针

  3. Binary Deduction/Search: sorted/rotated array/ Sqrt()

  4. 实现基本数据结构: hashmap, stack和queue

  5. Array/ String: shuffle an array, java big integer实现

  6. dfs vs bfs word ladder/ topological sorting

7. 简单dp,不需要很复杂: paint house/stock price/

 

计算机网络

1. TCP 三次握手,TCP/UDP 区别;

2. http/https 区别;http request:post/get ;http port 80 ssl;

3.输入www.google.com 会发生什么;What happens when you type www.google.com in your browser?

4.Public key/Private key;

5. HTTP 401, 403, or 404 Error/ client/server模型

 

数据库

1. SQL vs NoSql 区别

2. select/update/delete/insert

3.primary key;join(四种)和index 原理和作用

4.简单的sql语句:从table中找出成绩第二好的学生姓名; group by

5.简单了解几种nosql数据库: MangoDB/ Cassandra/HBase

 

系统及其它

    1. ACID/CAP 分布式系统

    2. Java多线程: extend Tread类,Implement Runnable接口/blockingqueue

    3. 序列化的几种方式:JSON/Object Serialize/ProtoBuf

    4. what is dead lock?死锁问题/如何解决

    5. Design Pattern 设计模式(singleton,factory, builder, decorator)

    6. Linux command: kill -9 / scp / telnet / ps
posted @ 2016-02-10 13:25  Jonas0608  阅读(199)  评论(0编辑  收藏  举报