java architect certification questions

Java Architects interview questions, how to become architectsOften interview some candidates, sorted out my interview using the topic, LU continued to organize a lot of problems, so each time to draw a part to ask. The answer will be gradually released in later articles. Basic Topics State of Java Threads The difference between process and thread, how processes

owns the lock gets the lock again, then the fetch counter increases by 1, and then the lock needs to be freed two times to get a true release. This mimics the semantics of synchronized; If a thread enters a synchronized block that is protected by a monitor that the thread already owns, it allows the thread to continue and does not release the lock when the thread exits the second (or subsequent) synchronized block. The lock is released only when the thread exits the first synchronized block tha

What does the scea test (Sun Certified architect) take? (including real questions and test sites) Favorites Scea certificate is a software system. Developers with this certificate can design the structure of the J2EE program and skillfully use the characteristics of J2EE to build a flexible and scalable system, secure Architecture. To pass the scea exam, developers must be able to understand and communicate

programmer courses can help you learn Java programming knowledge and skills in a short period of time, and accurately grasp the test site.Ii. What groups does Java certification training target?Some people often ask: I am unfamiliar with the Java language and have no foundation for programming. How can I get the

Reply content:In fact, this problem should be reported because this problem does not constitute a problem, it is purely to black Baidu. However, I just loved the black Baidu. Another, "... The argument that single quotes are more efficient than double quotes is a low-level error. Note, however, that there is another bright spot in the title-"Java Senior architect". Oh. Have feedback, thank

, combined with technical thinking ability." Light has the ability to develop programs, do not think, that can only be a code madman. Only thinking and not down-to-earth technology development capabilities, that is the performance of the people, but not to be liked.The first level of the cultivation of internal strength is naturally the development of technology. Starting with writing the first line of code, think about why, there are no other paths to achieve the same functionality. When we wri

Java Architect RequirementsProfessional Quality requirements:1, understand the role of the architect and structure design objectives, principles and trade-offs;2, proficient in the architecture model, Transaction, security, persistence and other mechanisms and implementation, IOC, AOP, SOA and other concepts and implementation;3, proficient in transaction, securi

Java Advanced StepLinks: https://www.nowcoder.com/discuss/72575Source: Niu Ke NetGold three silver four job-hopping season, everyone wants to have a high-paying, good environment, and stable work, now is the April, the job-hopping season remains the last one months, you are ready? Do you have a very skilled meal? Are you ready to go into the famous enterprise? The main thing is, are you a senior architect?

Lesson: Code Presentation Level Sub-table implementation-1: Design ideas, navigation table design, etc.108th Lesson: Code Presentation Level Sub-table implementation-2: Code implementation navigation, separate calls, and merge processing, etc.109th session: MySQL Fabric-1: Overview, Basic concepts, Basic installation configuration110th Lesson: MySQL fabric-2:ha Configuration use, sharding configuration use-----------------------The following section for database Performance tuning--------------

Lesson: Code Presentation Level Sub-table implementation-1: Design ideas, navigation table design, etc.108th Lesson: Code Presentation Level Sub-table implementation-2: Code implementation navigation, separate calls, and merge processing, etc.109th session: MySQL Fabric-1: Overview, Basic concepts, Basic installation configuration110th Lesson: MySQL fabric-2:ha Configuration use, sharding configuration use-----------------------The following section for database Performance tuning--------------

No. 01 Session: Overview of the overall course-----------------------The following is a distributed architecture and Deployment Section------------------------------------------------------------------No. 02 Lesson: The basic knowledge of distributed deployment and the evolution of system distributed deployment part I.No. 03 Lesson: The Evolution of system distributed deployment the second part; problems caused by distributed deploymentNo. 04 Lesson: Inter-module invocation: Problems, scenarios,

Summarize the Java Background Development interview questions and the java Background interview questions. Jing er has been summing up some interview questions recently, because he must take everything seriously. The same is true for the interview. As the interviewer of The

, common design ideas, Common Java Development Framework Master Proficiency, you can enter the group learning. 4, feel that they are very cow B, the general needs can be done. However, the knowledge points are not systematic, it is difficult to continue to break through in the technical field can be into the group learning. 5. Ali Java Senior Architect li

sentences, want to know more interview knowledge points, you can pay attention to me, I will organize more about the interview this piece of knowledge to share out, in addition to recommend an Exchange Learning Group: 650385180, which will share some senior architect recorded video recording: There is spring, Mybatis,netty source code Analysis, high concurrency, performance, distributed, micro-service architecture, JVM performance optimization These

Job-hopping is not frequent, but has participated in a lot of interviews (telephone interview, face to faces interview), large/small companies, Internet/traditional software company, batter (above his business, lack of actual combat experience, hang off), also face, fortunately not because of failure and discouraged, in the process of constantly check gaps, developed a practical, Trace, continuous improvement of the habit, I have experienced, conceived some of the

become a line of code through your hands to fulfill the prescribed goals. Although the SCJP test does not take test of operations and programming, there are a large number of procedures to read, such as Example 3, 4, 9, 10. If you have written a lot of code on your own, this is a piece of cake. ● Extensive communication Being good at communication is a must-have skill for excellent programmers and a shortcut to solving problems and improving your skills. There are many excellent websites and

, say that you encountered in the project the deepest impression of difficulties, how to solve9. What do you think are the deficiencies in your project?10, whether you have experienced CPU 100%, how to troubleshoot and solve11. Have you encountered memory OOM, how to troubleshoot and resolve12. Talk about your practice of agile development13. Talk about your practice of developing operation and maintenance14, the introduction of the work of one of their most valuable project, and the role in the

j2ee| Beginners | Questions first, the background of the Java EE proposed 1, Enterprise-class application framework requirements in many enterprise applications, such as database connectivity, mail services, transaction processing, etc. are common enterprise requirements modules that, if developed by developers, can lead to long development cycles and poor code reliability. So many large companies h

JVM virtual machine" Basic can answer this degree, in fact, to this extent I have been more than expected. Also less than 10%.4. In addition to 3, can also be clear serial, parallel (collation/Not defragment), CMS, such as the role of the collector can be the age, characteristics, advantages and disadvantages, and can explain the control/adjustment of the collector selection method.Analysis: The 4th with the above 2 questions.Finally introduce your own background, in a modest listed software co