将二维数组索引转换为一维索引 [英] Convert a 2D array index into a 1D index

问题描述

我有两个用于国际象棋变体的数组，我正在用 java 编码......到目前为止，我有一个控制台版本，它将棋盘表示为一维数组(大小为 32)，但我正在为它制作一个 GUI 和我希望它显示为 4x8 网格，所以我有一个二维的 JPanels 数组...

I have two arrays for a chess variant I am coding in java...I have a console version so far which represents the board as a 1D array (size is 32) but I am working on making a GUI for it and I want it to appear as a 4x8 grid, so I have a 2-dimensional array of JPanels...

问题是，考虑到它是一个 4x8 数组，是否有任何公式可以将数组 [i][j] 索引转换为数组 [i]?

Question is, is there any formula that can convert the array[i][j] index into array[i] given the fact its a 4x8 array?

推荐答案

给定 4 列 x 8 行:

Given 4 columns by 8 rows then:

i = row * 4 + col

我的错，显然没有人发现我犯了这个错误.但它实际上应该是 row * 4 + col.

My bad, nobody caught me on this mistake apparently. But it should actually be row * 4 + col.

row * 8 + col 会在可能的索引中留下不必要的间隙.

row * 8 + col would leave unnecessary gaps in the possible indexes.

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