为什么我们将 String 数组作为参数传递给 main() 方法，为什么不是任何集合类型或包装类型或原始类型? [英] Why we Pass String array as argument to main() method, why not any collection type or wrapper type or primitive type?

问题描述

为什么必须在 main 方法中将字符串 arg[] 作为参数传递?为什么我们不能传递java中可用的任何其他数据类型?在java中的main方法中传递String arg[]的重要性是什么?

why is it mandatory to pass string arg[] as an argument in main method? why we cannot pass any other data type available in java? whats the importance of passing String arg[] in main method in java?

推荐答案

历史.这是自 C 时代以来的约定，甚至更早?Java 的大部分语法都来自 C.

History. This is a convention since the days of C, maybe even earlier? Java took most of its syntax from C.

此外，命令行参数是字符串，这就是数据类型的原因.Java 1 中不存在集合，因此它们不是一个选项.数组确实存在.

Also, command line arguments are Strings which is why that is the data type. Collections did not exist in Java 1 so they were not an option. Arrays did exist.

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