What are the core technologies necessary for Java development?

The core technologies necessary for Java development are: 1. Java basic syntax; 2. Object-oriented programming; 3. Exception handling; 4. Generics; 5. Collection framework; 6. Multi-threaded programming; 7. Network programming; 8. Database access; 9. Design pattern; 10. Unit testing; 11. Version control; 12. Spring framework; 13. Distributed system development; 14. Performance tuning; 15. Log management; 16. Security ; 17. Continuous integration/continuous deployment. Detailed introduction: 1. Java basic syntax, which is the basis of Java development and so on.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

There are many core technologies necessary for Java development. The following are some of the important technologies:

1. Java basic syntax: Java basic syntax is the foundation of Java development. , including basic concepts and features such as variables, data types, control statements, functions, and object-oriented.

2. Object-oriented programming (OOP): Object-oriented is the core idea of ​​Java. To understand it, you only need to remember one sentence, that is, "everything is an object." In Java, classes and objects are the most basic concepts, and all code revolves around classes and objects.

3. Exception handling: Exception handling is a very important error handling mechanism in Java. By catching and handling exceptions, you can avoid unexpected termination of the program.

4. Generics: Generics are a new feature introduced in Java 5 that allow type-parameterized classes and methods to be defined at compile time. By using generics, you can create flexible and reusable code.

5. Collection framework: Java collection framework provides rich data structure implementations, including lists, sets, mappings, etc. By using the collection framework, various data structures can be easily processed.

6. Multi-threaded programming: Multi-threaded programming is an important technology for achieving concurrency and multi-tasking in Java. By using threads and thread pools, the execution efficiency and responsiveness of the program can be improved.

7. Network programming: Java provides rich network programming support, including TCP/IP, UDP and other network protocols. By using the network programming API provided by Java, network-based application development can be achieved.

8. Database access: Java provides a variety of database access technologies, such as JDBC, Hibernate, etc. By using these technologies, interaction from Java applications to databases can be achieved.

9. Design patterns: Design patterns are best practices for solving common problems. By learning and applying design patterns, you can improve code quality and maintainability.

10. Unit testing: Unit testing is an important means to ensure code quality. By writing unit test cases, you can ensure that each function or method works properly.

11. Version control: Version control is an important tool for collaborative development, such as Git. By using version control tools, code changes can be easily tracked and managed.

12. Spring Framework: Spring Framework is a popular Java development framework that provides a wealth of functions and tools, such as dependency injection, transaction management, Web application development, etc. By using the Spring framework, development efficiency and code quality can be improved.

13. Distributed system development: With the development of cloud computing and microservices, distributed system development is becoming more and more important. By using frameworks such as Spring Boot and Spring Cloud, distributed system development based on microservice architecture can be achieved.

14. Performance tuning: Performance tuning is an important means to improve the running efficiency of applications. By tuning JVM parameters, code optimization, etc., the performance and responsiveness of the application can be improved.

15. Log management: Log management is an important means to ensure the stability and maintainability of applications. By using a logging framework (such as Log4j, SLF4J, etc.), you can easily record the log information of the application.

16. Security: Security is an important means to protect applications from attacks. Application security can be improved through the use of encryption technology, security protocols (such as HTTPS), access control, etc.

17. Continuous Integration/Continuous Deployment (CI/CD): CI/CD is an important tool and technology for automating the building, testing and deployment of applications. By using CI/CD tools (such as Jenkins, Docker, etc.), development efficiency and code deployment reliability can be improved.

These technologies are essential core technologies for Java development. Mastering these technologies can help developers better develop and maintain Java applications.

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