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This article is to share with you about the use of the JVM platform development language. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The development language of JVM platform has always been a hot topic for Java developers. JVM is used as a mechanism to provide the portability of Java applications in different environments, other platforms and different hardware, while programming languages based on JVM platform are also increasing. From dynamic languages such as Groovy, JRuby, Jython to static Scala, JVM is also becoming a diversified platform where developers can make full use of different languages to meet their different needs.

From this month's ranking of programming languages, we can see that three of the five programming languages are based on the JVM platform. This also means that developers are paying more and more attention to and using JVM platform development language. Why is JVM's programming language so popular with developers? Let's analyze the three features of the JVM platform.

Dynamic language support

Dynamic languages have been supported since SE 6. Dynamic languages have gradually become a part of the daily work of many Java developers in application development, and are often used in prototyping or to improve the speed of development. In order to quickly get larger-scale Java applications, people have been using dynamic languages to glue program parts.

In fact, any functional language that can be expressed in a valid class file can run on JVM. The flexibility of dynamic languages, especially scripting languages, has a unique appeal to experimental, prototype applications, and programs that need to be updated frequently.

Java developers can also use dynamic languages for partial programming, and then convert this part of the code into Java, or continue to use Java to develop more robust and dynamic parts of the program, while other code can be developed in a more dynamic language. The inherent flexibility of dynamic types and the execution efficiency of JVM are merged into one. Obviously, this is why it attracts the creators of dynamic programming languages and the developers who build applications in those languages.

Cross-platform

It is impossible to say that JVM supports dynamic language programming alone to attract more developers. There was a saying that "program once, run everywhere", which refers to the cross-platform nature of JVM. It means that it does not rely on the operating system and does not trust the hardware environment.

So how does JVM cross platforms? The structure diagram of JVM is provided below.

The four cross-platform execution engines of JVM are described as follows:

1. Interpreter

Simple, one-time interpretation of bytecode. Easy to implement but slow to execute.

2. Real-time compiler

Compile the bytecode executed * * times into local machine code. The compiled local machine code is cached and can be reused on the second call. Execution is faster, but consumes more memory (compared to the interpreter).

3. Adaptive optimizer

The virtual machine starts by interpreting bytecode, but it monitors running programs and records the code snippets that are used most frequently. When the program runs, the most frequently used code is compiled into native code, and other infrequently used code continues to be bytecode.

4. Hardware chip:

Executes bytecode using the local method. After passing the compiler, java generates the class file, which is bytecode. After being compiled by the virtual machine, the machine code can only be run on the computer. Bytecodes are binaries that can be run on any hardware platform and operating system that supports java virtual machines.

(excerpt from bobiy45785's blog)

Mixed programming

Another thing that JVM platform can be popular with developers is that it can do mixed programming in multiple languages, that is to say, Java is not the only programming language that can be used on the JVM platform. The reason is that a single Java development can no longer meet the complex needs of current software. Mixed programming has also been popular with developers and has become the mainstream.

JVM continues to develop in the direction of multiple languages, and each language can better solve problems according to what it is good at; increasingly complex software requirements also make mixed programming application scenarios more frequent.

Thank you for reading! This is the end of this article on "what is the use of JVM platform development language?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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