java - 'String args[]'和 'public static void main(String[] args)'中的static的解释

Question

这个问题已经有答案了:

What is the "String args[]" parameter in the main method? (18 个回答)

已关闭 8 年前。

您如何向初学者很好地解释 String args[] 的含义？以及 static 的使用在下面的摘录中？

class FirstApp {
    public static void main(String[] args) {
        ...
    }
}

Answer 1

我会分手

public static void main(String args[])

部分:

public

It means that you can call this method from outside of the class you are currently in. This is necessary because this method is being called by the Java runtime system which is not located in your current class.

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static

When the JVM makes call to the main method there is no object existing for the class being called therefore it has to have static method to allow invocation from class.

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void

Java is platform independent language and if it will return some value then the value may mean different things to different platforms. Also there are other ways to exit the program on a multithreaded system. Detailed explaination.

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main

It's just the name of method. This name is fixed and as it's called by the JVM as entry point for an application.

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String args[]

These are the arguments of type String that your Java application accepts when you run it.