Can PHP programmers convert to Java?

# Can PHP programmers convert to Java?

Can. For professional programmers, it is relatively common to use different programming languages ​​​​in different development scenarios, so many programmers will master multiple different programming languages ​​​​after working for a period of time. For example, many Web programmers will master a variety of programming languages ​​​​at the same time. Master programming languages ​​such as Java, PHP, and C#.

For programmers, after mastering one programming language, it is relatively easy to learn other programming languages. You can learn while using them. In addition, most program development tasks have strict development cycle requirements. In many cases, programmers are not allowed to spend a large amount of time learning new languages, so self-study is also a more realistic option.

The main application field of PHP is Web development. Although the application fields are relatively concentrated, PHP occupies a large market share in the field of Web development, so it is also a widely used programming language. Compared with the Java language, PHP is more flexible in grammatical structure. After all, PHP is a scripting language, while Java is a purely object-oriented language. Java is more modular in terms of writing, so many PHP programmers are not used to Java's syntax. They will encounter some problems in the early stages of learning, mainly focusing on the understanding of various "abstractions", such as classes and abstract classes. (semi-abstract), interface (fully abstract), etc.

For programmers who switch from PHP to Java, if they want to master Java, they should pay attention to the following three issues:

First: Adjust programming ideas. The development idea of ​​PHP is relatively straightforward. Programmers do not need to consider too many issues of the language itself, while the Java language needs to be "designed" before use. This design is reflected in two links, one is function definition, and the other is One link is the design of "abstraction level". In addition, Java's modular design is also an important factor to consider.

Second: Pay attention to the framework. Different from PHP program development, when using Java language for Web development, it is almost inseparable from the support of the framework. The reason is naturally from the three aspects of program structure, abstraction level design and performance. Currently, the Spring framework can provide a one-stop solution. , including SpringBoot, SpringMVC, SpringCloud, etc., so learning Spring is a good choice.

Third: Focus on distributed development. After years of development, the Java language has built a huge language system, which is characterized by stable performance and strong scalability. An important manifestation of the scalability of the Java language is distributed programming, so to learn Java, you must learn to use Java to build distributed programming. Development related content. If time permits, you can learn about the solutions of the Hadoop platform.

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