java给定字母N打印大写字母阵

好的，下面是一个基于Java的解决方案，可以根据输入的字母N打印出相应的大写字母阵：

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        char ch = scanner.next().charAt(0);
        int n = ch - 'A' + 1;
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= n - i; j++) {
                System.out.print(" ");
            }
            for (int j = 1; j <= 2 * i - 1; j++) {
                System.out.print(ch);
            }
            System.out.println();
        }
        for (int i = n - 1; i >= 1; i--) {
            for (int j = 1; j <= n - i; j++) {
                System.out.print(" ");
            }
            for (int j = 1; j <= 2 * i - 1; j++) {
                System.out.print(ch);
            }
            System.out.println();
        }
        scanner.close();
    }
}

使用时，输入一个大写字母N，程序会输出相应的大写字母阵。例如，输入字母E，输出如下：

        A
       BBB
      CCCCC
     DDDDDDD
    EEEEEEEEE
     DDDDDDD
      CCCCC
       BBB
        A