I prepared for two months before the Golden 9th and the Silver 10th. These nearly 4,000 pages of Java written test questions were all included in the offers from many major manufacturers such as Byte, Meituan, Baidu, Huawei, Jingdong, etc.

Recently, I caught up with the peak period of job-hopping. Many fans asked me if I would like to have the latest interview questions. Simply, I sorted out the real questions and answers I had read and the real questions in my interview, and organized the "Second Edition" "Interview Questions from Internet Companies" and classified  92 PDFs, totaling 3,625 pages! I will continue to update, and the third edition will be released soon, covering the algorithms of major manufacturers will be more!

 

Version 2: The question bank is very comprehensive

Including Java collections, JVM, multithreading, concurrent programming, design patterns, Spring family buckets, Java, MyBatis, ZooKeeper, Dubbo, Elasticsearch, Memcached, MongoDB, Redis, MySQL, RabbitMQ, Kafka, Linux, Netty, Tomcat, Python, HTML , CSS, Vue, React, JavaScript, Android big data, Alibaba and other big factory interview questions, etc., and other technology stacks! Friends who need it can forward + follow private message (learning) to get it for free!

Second edition: Dubbo

• 1.What is Dubbo?
• 2.What are the usage scenarios of Dubbo?
• 3.What are the core functions of Dubbo?
• 4.What are the core components of Dubbo?
• 5. What is the process of Dubbo server registration and discovery?
• 6.What protocols does Dubbo support, and what are their advantages and disadvantages?
• 7. What protocol does Dubbo recommend?
• 8.Which registration centers does Dubbo have?
• 9.Dubbo's registry cluster is down, can the publisher and subscribers still communicate?
• 10.What communication framework does Dubbo use?.
• 11.What load balancing strategies does Dubbo cluster provide?
• 12.What are Dubbo's cluster fault tolerance solutions?
• 13.What serialization methods does Dubbo support?
• 14.What are the ways to set Dubbo timeout?
• 15.What happens if the service call times out?
• 16.What measures does Dubbo have in terms of security?
• 17. What other distributed frameworks are similar to Dubbo?
• 18.What is the relationship between Dubbo and Spring Cloud?.
• 19. What are the differences between Dubbo and Spring Cloud?

There are probably hundreds of questions for each knowledge point, so I won't show them all! Directly add satellites that need to be obtained: kaixindian331 is free to obtain

2.What are the usage scenarios of Dubbo?

• Transparent remote method calling: calling remote methods just like calling local methods, just simple configuration, no API intrusion.
• .Soft load balancing and fault tolerance mechanism: It can replace hardware load balancers such as F5 in the intranet, reducing costs and reducing single points.
• Automatic service registration and discovery: It is no longer necessary to write down the address of the service provider. The registration center queries the IP address of the service provider based on the interface name, and can smoothly add or delete service providers.

 

 

Second edition: Java 100 channels

 

 

What development platforms does Java have?

• JAVA SE: Mainly used in client development
• JAVA EE: Mainly used in web application development
• JAVA ME: Mainly used in embedded application development

.What is JVM? What does the java virtual machine include?

JVM: Java virtual machine, a virtual computer implemented by hardware or software means. Java virtual machine includes: registers, stacks, and processors

 

Second edition: 50 Java algorithms

 

Number of daffodils

Print out all the "number of daffodils", the so-called "number of daffodils" refers to a three-digit number, the sum of the cubes

In the number itself. For example: 153 is a "daffodil number", because 153 = 1 cube + 5 cube

+ 3 to the third power.

Program analysis: Use for loop to control 100-999 numbers, and each number is decomposed into units, tens, and hundreds.

 

Java 133 channels

 

 

Java collection of 77 channels

 

 

Java integrated 84 channels

 

 

Second edition: JavaScript 43 channels

 

Second edition: JavaScript 96 channels

Second edition: JVM 20 channels

 

 

 

All right! The more than 3000 pages of this interview document is too much, there is really no way to show them all, friends who need to get this information can directly forward + follow and add satellite: kaixindian331 can get it for free!