The golden autumn of September is also the peak recruitment season. Due to the influence of the general environment, this year's recruitment season is a bit special. In the face of crisis, continuous improvement is the best way. Prepare for interviews in advance and be prepared. The high salaries and benefits of large Internet companies such as Alibaba and Meituan have attracted many engineers to join, and the difficulty of interviews has also increased. What are the characteristics of interviews at first-tier Internet companies, and how to better prepare for interviews at Internet companies?
I am using my spare time to compile a "Java Quick Interview Guide" for Java back-end interviews at major manufacturers. The original intention is also very simple. I hope it can help everyone during the interview, reduce everyone's burden and save time, and help those in need. friends received high-paying offers.
Java-review-Gudie
[Java Quick Interview Guide Table of Contents] Java basics, exceptions, collections, concurrent programming, JVM, Spring family bucket, MyBatis, Redis, database, middleware MQ, Dubbo, Linux, Tomcat, ZooKeeper, Netty, etc. Contains most of the knowledge that a Java engineer needs or may use in an interview!
Java basics
Java collection container
JavaException
- What is the difference between Error and Exception?
- What is the difference between runtime exceptions and general exceptions (checked exceptions)?
- How does the JVM handle exceptions?
- What is the difference between throw and throws?
- What is the difference between final, finally and finalize?
- What is the difference between NoClassDefFoundError and ClassNotFoundException?
- Which part of try-catch-finally can be omitted?
- In try-catch-finally, if return occurs in catch, will finally still be executed?
- ...
Concurrent programming
- Concurrency basics
- Concurrency theory
- Concurrency keyword
- concurrent container
- Thread Pool
JVM
- JVM memory area
- Memory overflow exception
- garbage collector
- Memory allocation strategy
- Class loading mechanism
- JVM tuning
Spring
- spring overview
- Spring Inversion of Control (IOC)
- SpringBean
- Spring annotation
- Spring data access
- SpringAOP
SpringCloud
- What is service circuit breaker and what is service degradation?
- Advantages and Disadvantages of Microservices
- Pitfalls encountered during use
- List microservice technology stack
- Both eureka and zookeeper can provide service registration and discovery functions. Their differences
- eureka service registration and discovery principle
- Dubbo service registration and discovery principle
- ...
Redis
- Redis data type
- Redis transaction
- Redis persistence and caching
- Redis cache exception solution
- Redis cluster architecture
MySQL
RabbitMQ
- How to ensure that messages are sent to RabbitMQ correctly?
- How to ensure that the message receiver consumes the message?
- How to avoid repeated delivery or repeated consumption of messages?
- On what basis are messages transmitted?
- How are messages distributed?
- How are messages routed?
- How to ensure that messages are not lost?
- What are the benefits of using RabbitMQ?
- What are the disadvantages of message queues?
- How to choose MQ?
- How to ensure high availability of message queue?
- How to ensure the order of messages?
Architecture design
Due to space reasons, there are also SpringBoot, MyBatis, SpringMVC, Dubbo, Linux, Tomcat, ZooKeeper, Netty and other topics that will not be shown!
The information in this article has been organized and packaged and stored on the network disk. Friends who need the full version of the PDF can click on the business card below to pick it up!
