common problem:
- What is a Java Virtual Machine (JVM)? How is it different from a real computer?
- What are the basic data types in Java? What is their scope?
- What are reference types? What are the reference types in Java?
- What is an object? What is a class? What is the relationship between them?
- How to implement inheritance in Java? What are the benefits and drawbacks of inheritance?
- What is polymorphism? How is it implemented in Java?
- What is an interface in Java? How to define an interface?
- How to implement exception handling in Java? What are the exceptions in Java?
- What is event-driven programming? How to handle events in Java?
- What are the commonly used collection classes in Java? What are their usage methods and applicable scenarios?
- What is JDBC? How to connect to the database using JDBC?
- What is a DOM parser? How to parse XML file using DOM parser?
- What are BFS and DFS? What are their applications in graph traversal?
- What is a thread? What is multithreading? What are their applications in Java?
- What is network programming? How to do network programming in Java?
The abilities examined are as follows:
- Mastery of basic knowledge : As a well-known technology company, Huawei's inspection of Java engineers first focuses on the basic knowledge of Java programming, including Java syntax, object-oriented programming, exception handling, Java collections, multi-threading, network programming, etc.
- Practical hands-on ability : Examine the applicant's programming skills and problem-solving ability through programming questions or solving practical problems.
- Business understanding and modeling capabilities : Huawei focuses on employees' problem-solving abilities in specific business scenarios. Therefore, interviewers will try to extract problems from specific business scenarios to examine how candidates analyze and solve problems.
- Architecture design capabilities : Candidates with solid Java knowledge and skills will be asked questions about system design, such as how to design a high-concurrency, high-availability, and high-reuse system, and how to take performance into consideration in the design. Scalability, stability and other factors.
- Problem analysis and processing ability : During the interview process, the interviewer will observe the candidate's reaction and thinking process to the problem, and examine his or her problem analysis and processing ability.
- Communication and expression skills : During the interview process, candidates need to express their opinions and ideas clearly, accurately, and concisely. This is an important assessment of Huawei for candidates.
Interviews for Huawei Java engineers will examine candidates from multiple aspects, focusing not only on technical abilities, but also on comprehensive abilities such as business understanding, team collaboration, and problem solving.