如何使用ASCII初始化nxn维度上的位置？(java)

public class ASCIIInitialization {
    public static void main(String[] args) {
        int n = 5; // nxn维度
        int[][] positions = new int[n][n];

        int asciiValue = 65; // ASCII码起始值

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                positions[i][j] = asciiValue;
                asciiValue++;
            }
        }

        // 打印位置的ASCII码值
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                System.out.print((char) positions[i][j] + " ");
            }
            System.out.println();
        }
    }
}

A B C D E 
F G H I J 
K L M N O 
P Q R S T 
U V W X Y