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This article shares with you the content of an example analysis of the basics of the java language and platform. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Java language

In about this Book, we mentioned that the Java language is a statically typed, object-oriented language, which we hope you are already familiar with. The Java language also has a very obvious feature that it is (or should be) human readable.

Java platform

A platform is software that provides a runtime environment. The Java virtual machine (JVM) is responsible for linking and executing code in the form of class files (unreadable by humans). JVM cannot directly interpret the source files of the Java language. You have to convert the source files into class files first.

The main reason for the success of Java as a software system is that it is a standard. That is, it has a specification file that describes how it should work. Different vendors or project teams can launch their own implementations accordingly, and these different implementations work in the same way in theory. Although the specification does not guarantee the performance of these implementations when dealing with the same task, it can guarantee the correctness of the processing results.

There are many specifications that control Java systems, the most important of which are the Java language Specification (JLS) and the JVM Specification (VMSpec). In Java 7, the line between the two is becoming clearer. In fact, VMSpec no longer quotes anything from JLS, and if you think this is a sign that Java 7 values languages other than Java, you have the ability to see things. I hope you will continue to pay attention, and then we will explore the differences between the two specifications in more depth.

When it comes to the dual role of Java, you naturally want to ask, "is there any connection between the two?" If they are so distinct in Java 7, how do they work together to form the familiar Java system?

The link between the Java language and the platform is a unified definition of the class file (.class file) format. You can benefit a lot from carefully studying the definition of class files, which is one way to transform a good Java programmer into a great Java programmer. The figure shows the entire process of generating and using Java code.

Thank you for reading! This is the end of the article on "sample Analysis of the basic knowledge points of java language and platform". 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 out for more people to see!

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