Java 二维数组（2D Array）是一维数组在多维方向上的自然扩展，也是矩阵运算、图像处理、棋盘类算法等场景中最基础的数据载体。本文以 cosmos 仓库中 readme-2DArray.md 为主线，结合同一目录下的可运行示例 2d-array.java 与 2d-array-list-java.java ，系统讲解二维数组的定义、声明、初始化、动态创建、遍历 ...

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An array in Java is a container object that holds a fixed number of values of a single type. The length of an array is established when the array is created and cannot be changed.

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