如何将2D数组列表复制到2D数组 [英] how do I copy 2D array list to 2D array

问题描述

我有一个数组列表，我需要将它复制到2D数组，因为它更容易处理

I have an array list and I need to copy it to 2D array because it it easier to deal with

推荐答案

因为这些是不同的类型，你必须逐个复制元素。在复制元素之前，应使用所需的维度初始化目标数组，例如在

As those are different types, you have to copy the elements one by one. The target array should be initialized with required dimensions before you copy the elements, such as in

int[][] myArray = new int[columns][rows];

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-SA

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