静态方法调用_静态方法

￡神魔★判官ぃ 2022-12-06 15:29 231阅读 0赞

静态方法调用

Normally you can't call a method [of a class without first creating][] an instance of that class. By declaring a method using the `static` keyword, you can call it without first creating an object because it becomes a class method (i.e. a method that belongs to a class rather than an object).

通常，您必须[先创建该类][of a class without first creating]的实例，然后才能调用[该类][of a class without first creating]的方法。 通过使用`static`关键字声明一个方法，无需先创建对象就可以调用它，因为它成为类方法(即属于类而不是对象的方法)。

[Static methods][] are used for methods that do not need to access to an object's state or only use static fields. For example, the [main method][] is a static method:

[静态方法][Static methods]用于不需要访问对象状态或仅使用静态字段的方法。 例如， [main方法][main method]是静态方法：

publicstatic void main(String[] args)

It is the starting point for a Java application and does not need to access an object's state. In fact, there aren't any objects created at this point. Any parameters that it needs can be passed as a `String` array.

它是Java应用程序的起点，不需要访问对象的状态。 实际上，目前还没有创建任何对象。 它需要的任何参数都可以作为`String`数组传递。

To find out more about using the `static` keyword have a look at [Static Fields][].

要了解有关使用`static`关键字的更多信息，请查看“ [静态字段”][Static Fields] 。

> 翻译自: [https://www.thoughtco.com/static-method-2034289][https_www.thoughtco.com_static-method-2034289]

静态方法调用

[of a class without first creating]: https://www.thoughtco.com/main-class-2034233
[Static methods]: https://www.thoughtco.com/introduction-to-functions-in-c-958367
[main method]: https://www.thoughtco.com/definition-of-control-statements-958050
[Static Fields]: https://www.thoughtco.com/static-fields-2034338
[https_www.thoughtco.com_static-method-2034289]: https://www.thoughtco.com/static-method-2034289