java怎么输入二维字符数组

<code class="java">char[][] arr = {{'a', 'b', 'c'}, {'d', 'e', 'f'}, {'g', 'h', 'i'}};</code>

<code class="java">import java.util.Scanner;

public class Input2DCharArray {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int rows, cols;

        // 获取行数和列数
        System.out.print("请输入行数：");
        rows = scanner.nextInt();
        System.out.print("请输入列数：");
        cols = scanner.nextInt();

        // 创建二维字符数组
        char[][] arr = new char[rows][cols];

        // 输入元素
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                System.out.print("请输入第 " + (i + 1) + " 行第 " + (j + 1) + " 列的字符：");
                arr[i][j] = scanner.next().charAt(0);
            }
        }

        // 展示二维字符数组
        for (char[] row : arr) {
            for (char c : row) {
                System.out.print(c + " ");
            }
            System.out.println();
        }
    }
}</code>