创建初始重复数据的二维字符串数组的最有效方法是什么? [英] What is the most efficient way to create a 2d string array of initally repetitive data?

问题描述

在Python中，通常为了定义所述游戏板，我将使用以下代码:

In Python, typically to define said game board I would have used the following code:

board = [['0','0','0','0','0','0','0','0','0','0'] for i in range(10)]

但是，到目前为止，我一直只能使用Java来产生相同的结果:

However, using Java the only way I have been able to find so far to produce the same result would be to do:

public static String[][] board = {
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"},
        {"0","0","0","0","0","0","0","0","0","0"}};

当然，必须有一种更有效的方法来执行此操作.我知道如果它是整数，我可以有效地做到这一点，但考虑到这种情况，它必须是字符串.我以为for循环也可以应用，但是我似乎找不到合适的语法.也许不适用于Java.有什么建议吗?

Surely there must be a more efficient way of doing this. I know I can do it efficiently if it were to be integers, but it has to be strings given the situation. I had thought a for loop would also have applied, but I can't seem to find the right syntax for it; perhaps it isn't applicable for Java. Are there any suggestions?

推荐答案

您可以遍历每行并使用

You can loop over each row and use Arrays.fill:

public static String[][] board = new String[rows][cols];
static {
    for (String[] row : board) Arrays.fill(row, "0");
}

演示

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