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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