Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about how to carry out Java API. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Java API is an application programming interface and a specification that indicates how programmers writing applications should access the behavior and state of classes and; Java API can make Java adapt to network applications by supporting platform independence and security. Java API is a collection of runtime libraries that provide a standard set of methods for accessing host system resources.

Introduction to Java API

Java API makes Java adapt to network applications by supporting platform independence and security. Java API is a collection of runtime libraries that provide a standard set of methods for accessing host system resources.

The Java API class file used by the class file of the virtual machine loader when running the Java program. All loaded class files (including those extracted from applications and Java API) and all loaded dynamic libraries (including local methods) make up the entire program that runs on the Java virtual machine.

Before a platform can support Java programs, the functions of API must be explicitly implemented on this particular platform. To access local resources on the host, Java API calls local methods. Because Java API class files call local methods, Java programs no longer need to call them. Through this method, the Java API class file provides the Java program with platform independent and standard interface for the underlying host.

For Java programs, Java API will have the same performance and predictable behavior no matter what is inside the platform. It is precisely because the Java virtual machine and Java API are explicitly implemented on each specific host platform that the Java program itself can become a platform-independent program.

Java API also contributes to the Java security model. Before the Java API method does anything potentially dangerous (such as writing to a local disk), it checks to see if it is authorized by querying the access controller. An access controller is a class that performs stack checking and has decided whether or not to allow an operation.

The above is the editor for you to share how to carry out Java API, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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