What technologies do Java programmers need to master?

Key technologies that Java programmers need to master: 1. Java syntax and programming skills; 2. Java core technology; 3. Object-oriented programming; 4. Java Web development; 5. Database technology; 6. Framework and Library; 7. Version control tools; 8. Testing technology; 9. Deployment and continuous integration/continuous deployment; 10. Performance optimization and debugging technology; 11. Understand or be familiar with related technologies and tools. Detailed introduction: 1. Java programmers must be proficient in the syntax and programming skills of the Java language, including variables, data types, control structures, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Java programmers need to master a range of Java-related technologies in order to be able to effectively develop, test and maintain Java applications. The following are some key technologies that Java programmers need to master:

1. Java syntax and programming: Java programmers must be proficient in the syntax and programming skills of the Java language, including variables, data types, and controls. Structures, functions, exception handling, etc.

2. Java core technology: This includes the standard version features of the Java SE platform, such as multi-threaded programming, collection framework, input/output streams, network programming, etc.

3. Object-oriented programming (OOP): Java is an object-oriented language, so programmers need to understand and master OOP concepts, such as classes, objects, encapsulation, inheritance, multiple Status etc.

4. Java Web Development: Java programmers need to understand the basic knowledge of Java Web development, such as Servlet, JSP, HTTP protocol, Web server (such as Tomcat), etc.

5. Database technology: Java programmers need to master the basic concepts and uses of databases, including SQL language, JDBC (Java Database Connectivity), etc.

6. Frameworks and libraries: In order to improve development efficiency, Java programmers need to be familiar with some commonly used Java frameworks and libraries, such as Spring framework, Hibernate framework, MyBatis framework, etc.

7. Version control tools: such as Git, used for team collaboration and code management.

8. Testing technology: including unit testing, integration testing, etc., as well as automated testing using testing frameworks such as JUnit.

9. Deployment and Continuous Integration/Continuous Deployment (CI/CD): Learn how to deploy applications to production and use tools such as Maven or Gradle for builds and automated deployments.

10. Performance optimization and debugging techniques: Ability to analyze and optimize the performance of Java applications, as well as use debugging tools for troubleshooting.

11. Understand or be familiar with related technologies and tools: message queue technologies such as Apache Kafka or RabbitMQ, caching technologies such as Redis or Memcached, containerization technologies such as Docker, and AWS, Azure or GCP, etc. Cloud service platform.

In addition, Java programmers also need to continue to learn and pay attention to industry trends for constantly updated Java technologies and standards.

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