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what is java api

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Release: 2019-11-12 10:11:26
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what is java api

What is java api

java api is the standard class library provided by Java itself;

For example, the System.out.println(); printing function you use is the method implemented by Java itself. You just need to call it;

Usually checking the API is to let you see the function implemented by Java itself. , check how it is called, what parameters to pass, etc.;

api has detailed introductions to various classes, as well as various methods, including introductions to the use of constructors and ordinary methods. In fact, it is essentially a dictionary of the Java language .

Recommended tutorial: java tutorial

API

API ( Application Programming Interface (Application Programming Interface) are predefined functions designed to provide applications and developers with the ability to access a set of routines based on a piece of software or hardware without having to access the source code or understand the inner workings. details.

In different occasions, the meaning of this programming interface is different

java api refers to the functions provided by the java standard class library;

the api developed by android refers to the android sdk function library ;

Website API generally refers to the interface provided by a website, such as login verification, information query, notification, payment, etc.;

Windows API refers to the API provided by the Windows operating system.

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