如何在java中使用（String [] [] args） [英] how to use (String [] [] args) in java

问题描述

如何在java中使用（String [] [] args）和编写2d数组的程序。

how to use (String [] [] args) in java and write program of 2d array.

推荐答案

String [] [] 是字符串数组的数组。有时这被称为二维数组。

String[][] is an array of arrays of Strings. Sometimes that's called a two-dimensional array.

可以使用 X 的数组> new X [] {instanceOfX1，instanceOfX2，instanceOfX3} 。

An array of X can be created using new X[] { instanceOfX1, instanceOfX2, instanceOfX3 }.

由于 X 在这种情况下是 String [] 你可以像这样创建一个 String [] [] ：

Since X in this case is String[] you could create a String[][] like this:

new String[][] { new String[] { "a", "b" }, new String[] { "x", "y" }, new String[] { } }

请注意，内部数组不需要具有相同的大小（这称为锯齿状数组）。

Note that the inner arrays don't need to be of the same size (this is called a jagged array).

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