To improve skills, what professional certificates do Java engineers need to obtain?

With the continuous development of the Internet and information technology, Java engineers have become one of the core positions in the IT industry. As a Java engineer, if you want to improve your skills, it is very important to have some professional certificates. This article will introduce some common professional certificates that Java engineers need to obtain.

1. Oracle Certified Professional, Java SE Programmer (OCP-JP)
   The Java SE (Standard Edition) programmer certification provided by Oracle is one of the important certificates for Java engineers to get started. Obtaining this certification means that you have mastered the basic Java language, core libraries, and basic principles of object-oriented design and development. This certification is very helpful for further improving your Java development capabilities.
2. Oracle Certified Professional, Java EE Web Component Developer (OCP-JWCD)
   Java EE (Enterprise Edition) is an extension based on Java SE and is used to develop large-scale enterprise-level Web applications. If you want to learn more about Java EE and apply its related technologies for web development, this certification is very valuable. It examines the use and development capabilities of technologies such as JavaServer Pages (JSP), Servlets, and JavaServer Faces (JSF).
3. Oracle Certified Master, Java SE Developer (OCM-JD)
   Oracle Java SE Development Professional Certification (OCP-JD) is currently one of the highest level certifications in the Java direction. This certification is very attractive to senior Java engineers who focus on Java SE development and application design. Obtaining this certification will prove that you have in-depth understanding and experience in the Java language, design patterns, concurrent programming, I/O, performance optimization, etc.
4. Spring Framework Certification
   Spring Framework is one of the most popular enterprise-level application development frameworks on the Java platform. If you want to become a professional Java engineer and apply the Spring Framework in enterprise application development, obtaining Spring Framework certification is a good way. This certification examines the core concepts, features, and usage of the Spring framework.
5. Apache Struts Certification
   Apache Struts is an open source MVC framework, which is widely used in the development of Java Web applications. If you wish to use the Apache Struts framework in Java web development and enterprise-level applications, getting Apache Struts certification makes a lot of sense. This certification examines the architecture, configuration, and usage of Struts.

In addition to the above professional certifications, as a Java engineer, you can also consider some other related certifications to supplement and expand your skills:

1. Database related Certification: Such as Oracle Database Administrator Certified Professional (OCP-DBA), MySQL Database Administrator, etc.
2. Web development related certifications: such as HTML/CSS, JavaScript, AngularJS, React, etc.
3. Cloud computing and big data related certifications: such as AWS Certified Developer, Cloudera Certified Developer for Apache Hadoop, etc.

To sum up, as a Java engineer, having professional certification will help you showcase your skills and experience and enhance your professional competitiveness. Of course, these certifications are only an auxiliary means, and real improvement requires continuous learning and practice. I hope this article will help you choose the professional certification that is right for you.

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